; Fix typos: prefer American spelling

35 files changed, 292 insertions, 292 deletions

diff --git a/ChangeLog.2 b/ChangeLog.2
index cf19abaa138..5a73d53b8bf 100644
--- a/ChangeLog.2
+++ b/ChangeLog.2
@@ -4040,7 +4040,7 @@
 
         * lisp/progmodes/xref.el (xref--query-replace-1):
         Say 'All results processed' at the end if the user hadn't
-        cancelled the process (bug#23284).
+        canceled the process (bug#23284).
 
 2016-05-07  Eli Zaretskii  <eliz@gnu.org>
 
@@ -12542,7 +12542,7 @@
 
         * lisp/erc/erc-backend.el (erc-server-setup-periodical-ping): Checks
         for existing timers in the alist before adding new ones.  If a
-        timer already exists, it is cancelled and
+        timer already exists, it is canceled and
         overwritten. (bug#19292).
 
 2015-12-27  Jens Lechtenboerger  <jens.lechtenboerger@fsfe.org>
@@ -22108,7 +22108,7 @@
         * src/gfilenotify.c (dir_monitor_callback): Cancel the monitor if
         the file or directory to be watched is deleted.
         (Fgfile_add_watch): Make watch_object a triple.
-        (Fgfile_rm_watch): Check, whether watch is cancelled already.
+        (Fgfile_rm_watch): Check, whether watch is canceled already.
         (Fgfile_valid_p): New defun.
         (syms_of_gfilenotify): Declare Sgfile_valid_p.
 
diff --git a/ChangeLog.3 b/ChangeLog.3
index d0ff14117be..9de03321494 100644
--- a/ChangeLog.3
+++ b/ChangeLog.3
@@ -740,7 +740,7 @@
         This is a partial backport from master: it only includes the changes below.
 
         * lib/mini-gmp.c (gmp_assert_nocarry): Avoid many Clang
-        unused-variable warnings when building with optimisation.
+        unused-variable warnings when building with optimization.
         * lib/verify.h (_GL_HAVE__STATIC_ASSERT): Modify condition for using
         _Static_assert to cope with older Apple builds of Clang exposing
         misleading compiler version numbers.  See discussion starting at
@@ -1381,10 +1381,10 @@
 
 2022-03-06  Lars Ingebrigtsen  <larsi@gnus.org>
 
-        Restore documented Emacs 27.2 behaviour of browse-url-of-dired-file
+        Restore documented Emacs 27.2 behavior of browse-url-of-dired-file
 
         * lisp/net/browse-url.el (browse-url-of-dired-file): Restore the
-        documented behaviour -- open a web browser instead of passing to
+        documented behavior -- open a web browser instead of passing to
         the various handlers.
 
 2022-03-06  Kyle Meyer  <kyle@kyleam.com>
@@ -2244,7 +2244,7 @@
         This fixes bug #52796.
 
         * lisp/progmodes/cc-engine.el (c-update-brace-stack): Handle a "*" like a
-        semicolon, cancelling the expectation of a brace.
+        semicolon, canceling the expectation of a brace.
 
         * lisp/progmodes/cc-langs.el (c-brace-stack-thing-key): Add a "*" into the
         sets of significant characters.
@@ -2818,7 +2818,7 @@
 
 2021-12-01  Alan Mackenzie  <acm@muc.de>
 
-        CC Mode: Recognise "struct foo {" as introducing a type declaration
+        CC Mode: Recognize "struct foo {" as introducing a type declaration
 
         This fixes bug #52157.
 
@@ -2904,7 +2904,7 @@
 
 2021-11-29  Andreas Schwab  <schwab@linux-m68k.org>
 
-        Avoid undefined behaviour when copying part of structure
+        Avoid undefined behavior when copying part of structure
 
         * src/dispnew.c (copy_row_except_pointers): Don't use address of
         subobject as starting point.
@@ -6061,14 +6061,14 @@
         Fix previous `newline' patch
 
         * lisp/simple.el (newline): Signal an error earlier to avoid
-        peculiar behaviour after getting a backtrace (bug#50900).
+        peculiar behavior after getting a backtrace (bug#50900).
 
 2021-09-30  Lars Ingebrigtsen  <larsi@gnus.org>
 
         Make `newline' check the argument earlier
 
         * lisp/simple.el (newline): Signal an error earlier to avoid
-        peculiar behaviour after getting a backtrace (bug#50900).
+        peculiar behavior after getting a backtrace (bug#50900).
 
 2021-09-30  akater  <nuclearspace@gmail.com>
 
@@ -6249,7 +6249,7 @@
           etc/themes/modus-vivendi-theme.el: Bump file version.
 
         * etc/themes/modus-themes.el (modus-themes-operandi-colors)
-        (modus-themes-vivendi-colors): Recalibrate some colour values and add
+        (modus-themes-vivendi-colors): Recalibrate some color values and add
         a few new ones.
         (modus-themes-slanted-constructs): Remove obsolete user option.
         Superseded by the alias 'modus-themes-italic-constructs'.
@@ -7105,11 +7105,11 @@
 
         Fix byte-compiler crash for legal dynamic-binding code
 
-        This should really be taken care of by a syntax normalisation step in
+        This should really be taken care of by a syntax normalization step in
         the frontend, but there is no such step for non-lexbind code yet.
 
         * lisp/emacs-lisp/byte-opt.el (byte-optimize-letX): Tolerate bindingsa
-        without initialising expressions.
+        without initializing expressions.
         * test/lisp/emacs-lisp/bytecomp-tests.el (bytecomp-tests--test-cases):
         Add test cases.
 
@@ -8168,7 +8168,7 @@
 
         This reverts commit 7e395a59b025c7f4be49294ad806addf5b1a25c9.
 
-        The behaviour change isn't good for the majority of tar files.
+        The behavior change isn't good for the majority of tar files.
 
 2021-09-21  Lars Ingebrigtsen  <larsi@gnus.org>
 
@@ -8180,10 +8180,10 @@
 
 2021-09-21  Lars Ingebrigtsen  <larsi@gnus.org>
 
-        Restore some of the previous behaviour in whitespace-display-window
+        Restore some of the previous behavior in whitespace-display-window
 
         * lisp/whitespace.el (whitespace-display-window): Emulate previous
-        behaviour (bug#50716).  Code from martin rudalics <rudalics@gmx.at>.
+        behavior (bug#50716).  Code from martin rudalics <rudalics@gmx.at>.
 
 2021-09-21  Lars Ingebrigtsen  <larsi@gnus.org>
 
@@ -8400,7 +8400,7 @@
 
         Add docstring for 'electric-pair-p-s-i-f' and minor refactor
 
-        Extract the "open newline between pairs behaviour" into its own
+        Extract the "open newline between pairs behavior" into its own
         function, electric-pair-open-newline-between-pairs-psif.
 
         * lisp/elec-pair.el (electric-pair-post-self-insert-function): Add
@@ -8640,7 +8640,7 @@
 
 2021-09-20  Philip Kaludercic  <philipk@posteo.net>
 
-        Fix dolist-with-progress-reporter behaviour
+        Fix dolist-with-progress-reporter behavior
 
         * lisp/subr.el (dolist-with-progress-reporter): Use the length of
         list argument as maximal value the reporter with reach.
@@ -8725,17 +8725,17 @@
 
 2021-09-19  Mattias Engdegård  <mattiase@acm.org>
 
-        Initialise unread buffer
+        Initialize unread buffer
 
         The reader has an extra 1-char unread buffer that was incorrectly
-        initialised to 0, which means that the first character read would
+        initialized to 0, which means that the first character read would
         always be NUL.  As this is often the code that looks for the
         lexical-binding cookie, the first loaded source module would be
         treated as dynamically bound.  During bootstrapping this is loadup.el
         and so its local variables got dumped into the global environment.
 
-        * src/lread.c (unread_char): Initialise to empty.
-        (Fload): Initialise here too just in case.
+        * src/lread.c (unread_char): Initialize to empty.
+        (Fload): Initialize here too just in case.
 
 2021-09-19  Stefan Kangas  <stefan@marxist.se>
 
@@ -10710,11 +10710,11 @@
 
         Replace uses of a variable aliasing another variable with that aliased
         variable, to allow for variable removal when possible.  This also
-        enables opportunities for other optimisations.  Example:
+        enables opportunities for other optimizations.  Example:
 
          (let ((y x)) (f y)) => (f x)
 
-        The optimisation is only performed if both aliased and aliasing
+        The optimization is only performed if both aliased and aliasing
         variables are lexically bound.  Shadowing bindings are α-renamed when
         necessary for correctness.  Example:
 
@@ -10724,7 +10724,7 @@
         * lisp/emacs-lisp/byte-opt.el (byte-optimize--aliased-vars): New.
         (byte-optimize-form-code-walker): Cancel aliasing upon mutation.
         (byte-optimize--rename-var-body, byte-optimize--rename-var): New.
-        (byte-optimize-let-form): Add the optimisation.
+        (byte-optimize-let-form): Add the optimization.
         * test/lisp/emacs-lisp/bytecomp-tests.el (bytecomp-tests--test-cases):
         Add relevant test cases.
 
@@ -11458,31 +11458,31 @@
 
 2021-09-06  Mattias Engdegård  <mattiase@acm.org>
 
-        Normalise nested `progn` forms in byte-code optimiser
+        Normalize nested `progn` forms in byte-code optimizer
 
         * lisp/emacs-lisp/byte-opt.el (byte-optimize-body): Flatten body.
         This simplifies the source tree and reduces the number of different
-        cases that other optimisations need to take into account.
+        cases that other optimizations need to take into account.
 
 2021-09-06  Mattias Engdegård  <mattiase@acm.org>
 
-        More robust optimisation of `ignore`
+        More robust optimization of `ignore`
 
-        Treat `ignore` as any other function during source-level optimisation,
-        to avoid having its warning-suppression effects cancelled by repeated
+        Treat `ignore` as any other function during source-level optimization,
+        to avoid having its warning-suppression effects canceled by repeated
         passes.  Instead, define a custom code generation function.
 
         * lisp/emacs-lisp/byte-opt.el (byte-optimize-form-code-walker):
         Don't treat `ignore' specially here.
         (side-effect-free-fns): Don't mark `ignore` as side-effect-free
-        or error-free (although it is), since that would allow the optimiser
+        or error-free (although it is), since that would allow the optimizer
         to elide calls.
         * lisp/emacs-lisp/bytecomp.el (ignore, byte-compile-ignore):
         Define and register a code-gen function.
 
 2021-09-06  Mattias Engdegård  <mattiase@acm.org>
 
-        Optimise `member` and `assoc` (etc) with constant empty list
+        Optimize `member` and `assoc` (etc) with constant empty list
 
         * lisp/emacs-lisp/byte-opt.el
         (byte-optimize-assq): New.
@@ -12720,7 +12720,7 @@
 
         This reverts commit c8e3347ec01a9ed6dc8d88c2dbbb3a08497e8eb2.
 
-        Jim Porter's paperwork isn't finalised yet.
+        Jim Porter's paperwork isn't finalized yet.
 
 2021-08-26  Lars Ingebrigtsen  <larsi@gnus.org>
 
@@ -15567,11 +15567,11 @@
 
         The current method of propagating constants through setq was unsound
         because it relied on each setq form only being traversed at most once
-        during optimisation, which isn't necessarily true in general; it could
+        during optimization, which isn't necessarily true in general; it could
         be made to miscompile code in rare cases.
 
         Since it was only used in limited circumstances, disabling this
-        optimisation doesn't cost us much.
+        optimization doesn't cost us much.
 
         * lisp/emacs-lisp/byte-opt.el (byte-optimize-form-code-walker):
         Don't update the known value when traversing `setq`.
@@ -15809,7 +15809,7 @@
 
 2021-08-03  Phil Sainty  <psainty@orcon.net.nz>
 
-        Make `global-so-long-mode' handle unrecognised file types
+        Make `global-so-long-mode' handle unrecognized file types
 
         * lisp/so-long.el (so-long-target-modes): Add `fundamental-mode'
 
@@ -16299,16 +16299,16 @@
 
         Ensure in cconv that let-bindings have the normal form (VAR EXPR)
         where VAR is a valid variable name, so that we don't need to keep
-        re-checking this all the time in the optimiser.
+        re-checking this all the time in the optimizer.
 
         * lisp/emacs-lisp/byte-opt.el
         (byte-optimize-enable-variable-constprop)
         (byte-optimize-warn-eliminated-variable): Remove; these were mainly
         used for debugging.
         * lisp/emacs-lisp/byte-opt.el (byte-optimize-let-form):
-        Assume normalised let-bindings (with lexical-binding).
+        Assume normalized let-bindings (with lexical-binding).
         Stop using the variables removed above.
-        * lisp/emacs-lisp/cconv.el (cconv-convert): Ensure normalised
+        * lisp/emacs-lisp/cconv.el (cconv-convert): Ensure normalized
         let-bindings.  Malformed bindings are dropped after warning.
 
         remove byte-optimize-warn-eliminated-variable
@@ -16400,7 +16400,7 @@
 
 2021-07-30  Mattias Engdegård  <mattiase@acm.org>
 
-        Optimise let and let* whose body is constant or the last variable
+        Optimize let and let* whose body is constant or the last variable
 
         Simplify  (let ((X1 E1) ... (Xn En)) Xn)
               =>  (progn E1 ... En)
@@ -16409,9 +16409,9 @@
               =>  (let* ((X1 E1) ... (Xn-1 En-1)) En)
 
         and similarly the case where the body is a constant, extending a
-        previous optimisation that only applied to the constant nil.
+        previous optimization that only applied to the constant nil.
         This reduces the number of bound variables, shortens the code, and
-        enables further optimisations.
+        enables further optimizations.
 
         * lisp/emacs-lisp/byte-opt.el (byte-optimize-letX): Rewrite using
         `pcase` and add the aforementioned transformations.
@@ -16420,7 +16420,7 @@
 
 2021-07-30  Mattias Engdegård  <mattiase@acm.org>
 
-        Move warnings about bad let-bindings from source optimiser to cconv
+        Move warnings about bad let-bindings from source optimizer to cconv
 
         * lisp/emacs-lisp/byte-opt.el (byte-optimize-let-form): Move warnings...
         * lisp/emacs-lisp/cconv.el (cconv-convert): ...here, which is an
@@ -16428,7 +16428,7 @@
 
 2021-07-30  Mattias Engdegård  <mattiase@acm.org>
 
-        Optimise prog1 better
+        Optimize prog1 better
 
         Rewrite (prog1 CONST FORMS...) => (progn FORMS... CONST)
         where CONST is a compile-time constant, because putting the value last
@@ -16440,23 +16440,23 @@
 
 2021-07-30  Mattias Engdegård  <mattiase@acm.org>
 
-        Elide lexical variables in for-effect context in source optimiser
+        Elide lexical variables in for-effect context in source optimizer
 
         * lisp/emacs-lisp/byte-opt.el (byte-optimize-form-code-walker):
         Remove for-effect uses of lexical variables.  We previously relied on
-        this being done by the lapcode peephole optimiser but at source level
-        it enables more optimisation opportunities.
+        this being done by the lapcode peephole optimizer but at source level
+        it enables more optimization opportunities.
         Keywords are elided for the same reason.
 
 2021-07-30  Mattias Engdegård  <mattiase@acm.org>
 
-        Single source optimiser entry point
+        Single source optimizer entry point
 
-        Make the optimiser aware of lexical arguments.  Otherwise we cannot
+        Make the optimizer aware of lexical arguments.  Otherwise we cannot
         know for sure whether a variable is lexical or dynamic during
         traversal.
 
-        * lisp/emacs-lisp/byte-opt.el (byte-optimize-one-form): New optimiser
+        * lisp/emacs-lisp/byte-opt.el (byte-optimize-one-form): New optimizer
         entry point, replacing the recursive byte-optimize-form.
         * lisp/emacs-lisp/bytecomp.el (byte-optimize-one-form): Autoload.
         (byte-compile-keep-pending, byte-compile-top-level):
@@ -17377,7 +17377,7 @@
 
         `term-char-mode' doc string clarification
 
-        * lisp/term.el (term-char-mode): Document behaviour (bug#49186).
+        * lisp/term.el (term-char-mode): Document behavior (bug#49186).
 
 2021-07-22  Dmitry Gutov  <dgutov@yandex.ru>
 
@@ -17614,14 +17614,14 @@
 
 2021-07-21  Mattias Engdegård  <mattiase@acm.org>
 
-        Fix mistake in `quote` optimiser
+        Fix mistake in `quote` optimizer
 
         Found by Pip Cet.
 
         * lisp/emacs-lisp/byte-opt.el (byte-optimize-quote): Fix mistake that
-        made this optimiser ineffective at removing quoting of nil, t, and
+        made this optimizer ineffective at removing quoting of nil, t, and
         keywords.  The only obvious consequence is that we no longer need...
-        (byte-optimize-form): ...a 'nil => nil normalising step here; remove.
+        (byte-optimize-form): ...a 'nil => nil normalizing step here; remove.
         (byte-optimize-form-code-walker): Make the compiler warn about (quote).
 
 2021-07-20  Juri Linkov  <juri@linkov.net>
@@ -17650,7 +17650,7 @@
 
         Strength-reduce (eq X nil) to (not X)
 
-        * lisp/emacs-lisp/byte-opt.el (byte-optimize-eq): New optimisation,
+        * lisp/emacs-lisp/byte-opt.el (byte-optimize-eq): New optimization,
         which results in better test and branch code generation where it
         applies.
 
@@ -18263,7 +18263,7 @@
 
         (Full support for packages or face groups): Include new items.
 
-        (Notes on individual packages): Add notes on Avy hints, the colour of
+        (Notes on individual packages): Add notes on Avy hints, the color of
         days in 'M-x calendar', and underlines in 'compilation-mode' buffers.
 
         (What is the best setup for legibility?): Remove single word.
@@ -19806,7 +19806,7 @@
         * etc/emacs-mail.desktop:
         * etc/emacsclient.desktop: Automatically try to
         reuse an existing frame, open a new frame, or start a new Emacs
-        daemon.  Add actions for specific behaviours (bug#49195).
+        daemon.  Add actions for specific behaviors (bug#49195).
 
 2021-06-30  Peter Oliver  <git@mavit.org.uk>
 
@@ -21873,7 +21873,7 @@
 
 2021-06-03  Mattias Engdegård  <mattiase@acm.org>
 
-        Optimise (cons X nil) to (list X)
+        Optimize (cons X nil) to (list X)
 
         * lisp/emacs-lisp/byte-opt.el (byte-optimize-cons): New function.
 
@@ -22136,7 +22136,7 @@
         When used with Fido, completions scroll like a typical dropdown
         widget.
 
-        If the dropdown behaviour is desired for Icomplete (instead of
+        If the dropdown behavior is desired for Icomplete (instead of
         rotation), icomplete-scroll can be adjusted separately by the user.
 
         * etc/NEWS (icomplete-vertical-mode): Reword.
@@ -22784,7 +22784,7 @@
 
         Don't propagate lexical variables into inlined functions
 
-        Functions compiled when inlined (thus from inside the optimiser)
+        Functions compiled when inlined (thus from inside the optimizer)
         mustn't retain the lexical environment of the caller or there will be
         tears.  See discussion at
         https://lists.gnu.org/archive/html/emacs-devel/2021-05/msg01227.html .
@@ -23028,7 +23028,7 @@
 
 2021-05-25  Miha Rihtaršič  <miha@kamnitnik.top>
 
-        Try to not prioritise reading from lower file descriptors
+        Try to not prioritize reading from lower file descriptors
 
         * src/process.c (wait_reading_process_output): When looping through
         fds, continue from where we left off.
@@ -25525,7 +25525,7 @@
 
 2021-05-04  Lars Ingebrigtsen  <larsi@gnus.org>
 
-        Fix inconsistent behaviour in find-file-noselect when using nowarn
+        Fix inconsistent behavior in find-file-noselect when using nowarn
 
         * lisp/files.el (after-find-file): Behave the same in when
         warning/not warning (bug#47850).  This fixes this test case:
@@ -25595,7 +25595,7 @@
 2021-05-03  Alan Third  <alan@idiocy.org>
             martin rudalics  <rudalics@gmx.at>
 
-        Fix incorrect resizing behaviour on macOS (bug#48157, bug#48162)
+        Fix incorrect resizing behavior on macOS (bug#48157, bug#48162)
 
         * src/nsterm.m ([EmacsView viewDidResize:]): The drawing buffer can be
         resized independently of Emacs's idea of the frame size.
@@ -28650,10 +28650,10 @@
 
 2021-04-09  Mattias Engdegård  <mattiase@acm.org>
 
-        Fix condition-case optimiser bug
+        Fix condition-case optimizer bug
 
         * lisp/emacs-lisp/byte-opt.el (byte-optimize-form-code-walker): Don't
-        perform incorrect optimisations when a condition-case variable shadows
+        perform incorrect optimizations when a condition-case variable shadows
         another lexical variable.
         * test/lisp/emacs-lisp/bytecomp-tests.el (bytecomp-tests--test-cases):
         New test case.
@@ -28762,7 +28762,7 @@
 
         Self-TCO in `condition-case` error handlers
 
-        * lisp/emacs-lisp/cl-macs.el (cl--self-tco): Recognise
+        * lisp/emacs-lisp/cl-macs.el (cl--self-tco): Recognize
         `condition-case` handlers as being in the tail position.
         * test/lisp/emacs-lisp/cl-macs-tests.el (cl-macs--labels):
         Extend test.
@@ -29248,7 +29248,7 @@
 
 2021-04-05  Stefan Kangas  <stefan@marxist.se>
 
-        Remove local uniquify functions in favour of seq-uniq
+        Remove local uniquify functions in favor of seq-uniq
 
         * lisp/emacs-lisp/seq.el (seq-uniq): Add autoload cookie.
         * lisp/pcomplete.el: (pcomplete-uniquify-list): Use seq-uniq.
@@ -29274,7 +29274,7 @@
 
         Obsolete local list functions in shadowfile.el
 
-        * lisp/shadowfile.el (shadow-union): Make obsolete in favour of
+        * lisp/shadowfile.el (shadow-union): Make obsolete in favor of
         cl-union.  Update callers.
         (shadow-find): Make into obsolete function alias for seq-find.
         Update callers.
@@ -31577,7 +31577,7 @@
 
 2021-03-18  Mattias Engdegård  <mattiase@acm.org>
 
-        Optimise tail calls in `and` and `or` forms in `cl-labels` functions
+        Optimize tail calls in `and` and `or` forms in `cl-labels` functions
 
         * lisp/emacs-lisp/cl-macs.el (cl--self-tco): Handle `and` and `or`.
         * test/lisp/emacs-lisp/cl-macs-tests.el (cl-macs--labels):
@@ -31695,7 +31695,7 @@
 
 2021-03-18  Lars Ingebrigtsen  <larsi@gnus.org>
 
-        Recognise "Verify password" as a password prompt
+        Recognize "Verify password" as a password prompt
 
         * lisp/comint.el (comint-password-prompt-regexp): Also react to
         "Verify password" (output by "zip -e") (bug#47209).
@@ -35655,7 +35655,7 @@
 
         * lisp/emacs-lisp/rx.el (rx): Add (pred stringp) to avoid type errors,
         and replace the `pred` clause for the actual match with something that
-        works with pcase-let(*) without being optimised away.
+        works with pcase-let(*) without being optimized away.
         * test/lisp/emacs-lisp/rx-tests.el (rx-pcase): Add test cases.
 
 2021-02-26  Stefan Kangas  <stefan@marxist.se>
@@ -37602,7 +37602,7 @@
         test/lisp/calendar/icalendar-resources/import-rrule-yearly.diary-iso:
         *
         test/lisp/calendar/icalendar-tests.el (icalendar-convert-anniversary-to-ical):
-        Match new diary-anniversary/yearly-rrule behaviour.
+        Match new diary-anniversary/yearly-rrule behavior.
 
         * lisp/calendar/icalendar.el (icalendar--datestring-to-isodate): Add
         year-shift option.  (icalendar--convert-anniversary-to-ical): Shift
@@ -38022,7 +38022,7 @@
         * lisp/emacs-lisp/easy-mmode.el (define-minor-mode): Keep
         `minor-modes' updated.
         * src/buffer.c (bset_minor_modes, Fmake_indirect_buffer)
-        (reset_buffer, init_buffer_once): Initialise `minor-modes'.
+        (reset_buffer, init_buffer_once): Initialize `minor-modes'.
         (syms_of_buffer): Add `minor-modes' as a new permanently-local
         variable.
 
@@ -38399,10 +38399,10 @@
 
 2021-02-12  Mattias Engdegård  <mattiase@acm.org>
 
-        Avoid traversing dead `if` branches in bytecode optimiser
+        Avoid traversing dead `if` branches in bytecode optimizer
 
         There is no point in traversing conditional branches that are
-        statically known never to be executed.  This saves some optimisation
+        statically known never to be executed.  This saves some optimization
         effort, but more importantly prevents variable assignments and
         references in those branches from blocking effective constant
         propagation.
@@ -38412,9 +38412,9 @@
         assignments.
 
         * lisp/emacs-lisp/byte-opt.el (byte-optimize-form):
-        Rewrite the (tail) recursion into an explicit loop.  Normalise a
+        Rewrite the (tail) recursion into an explicit loop.  Normalize a
         return value of (quote nil) to nil, for easier subsequent
-        optimisations.
+        optimizations.
         * lisp/emacs-lisp/byte-opt.el (byte-optimize-form-code-walker): Don't
         traverse dead `if` branches.  Use unconditional traversion context
         when possible.
@@ -38974,7 +38974,7 @@
         Make texinfmt-version variable obsolete
 
         * lisp/textmodes/texinfmt.el (texinfmt-version): Make variable and
-        command obsolete in favour of 'emacs-version'.
+        command obsolete in favor of 'emacs-version'.
         (texinfo-format-region, texinfo-format-buffer-1): Use
         'emacs-version' instead of above obsolete variable.
 
@@ -39645,7 +39645,7 @@
           (let ((x (+ 2 3))) (f x))  =>  (f 5)
 
         This reduces code size, eliminates stack operations, and enables
-        further optimisations.  The implementation is conservative, and is
+        further optimizations.  The implementation is conservative, and is
         strongly curtailed by the presence of variable mutation, conditions
         and loops.
 
@@ -40828,7 +40828,7 @@
 
 2021-01-31  Alan Mackenzie  <acm@muc.de>
 
-        Minimise the time Vminibuffer_list is in an inconsistent state (src/minibuf.c)
+        Minimize the time Vminibuffer_list is in an inconsistent state (src/minibuf.c)
 
         src/minibuf.c (get_minibuffer): Move the XSETCAR which writes the new
         minibuffer into Vminibuffer_list to immediately after the MB's creation, so
@@ -43203,7 +43203,7 @@
 
         * lisp/emacs-lisp/checkdoc.el (checkdoc-ispell-init): Always send
         the Lisp words to the process (bug#6221).  This allows an existing
-        ispell process to be correctly initialised.
+        ispell process to be correctly initialized.
 
 2021-01-20  Juri Linkov  <juri@linkov.net>
 
@@ -43500,7 +43500,7 @@
 
         Parse square root sign in embedded Calc mode
 
-        * lisp/calc/calc-lang.el (math-read-big-rec): Recognise √ since it may
+        * lisp/calc/calc-lang.el (math-read-big-rec): Recognize √ since it may
         be used in Big mode.
 
 2021-01-19  Mattias Engdegård  <mattiase@acm.org>
@@ -45070,7 +45070,7 @@
 
         * lisp/textmodes/paragraphs.el (mark-paragraph): Revert
         eb090f65ceb0ae8a90829e911694348583135ba5 (bug#45318).  This restores
-        the behaviour from Emacs 27 -- further work is needed on this patch.
+        the behavior from Emacs 27 -- further work is needed on this patch.
 
 2021-01-07  Michael Albinus  <michael.albinus@gmx.de>
 
@@ -47854,7 +47854,7 @@
         c-laomib-loop.  Insert code which calls c-laomib-loop minimally, with the help
         of the new cache.
 
-        * lisp/progmodes/cc-mode.el (c-basic-common-init): Initialise the new cach
+        * lisp/progmodes/cc-mode.el (c-basic-common-init): Initialize the new cach
         (at mode start).
         (c-before-change): Invalidate the new cache.
         (c-fl-decl-start): Add an extra check (> (point) bod-lim) to prevent looping.
@@ -49336,7 +49336,7 @@
 
 2020-12-14  Alan Mackenzie  <acm@muc.de>
 
-        Optimise c-font-lock-<>-arglists, particularly for buffers with few <..> pairs
+        Optimize c-font-lock-<>-arglists, particularly for buffers with few <..> pairs
 
         * lisp/progmodes/cc-fonts.el (c-font-lock-<>-arglists): In place of a regexp
         search for a complicated and slow regexp, search simply for "<" outside of
@@ -49357,7 +49357,7 @@
 
 2020-12-14  Alan Mackenzie  <acm@muc.de>
 
-        Optimise c-parse-state for large buffers with few (if any) braces.
+        Optimize c-parse-state for large buffers with few (if any) braces.
 
         * lisp/progmodes/cc-engine.el (c-get-fallback-scan-pos): Search a maximum of
         50,000 characters back for the two BODs.  Return nil if we dont' find them.
@@ -50555,7 +50555,7 @@
 
         * test/src/casefiddle-tests.el (casefiddle-tests-char-casing):
         (upcase ?ß) now returns ?ẞ (U+7838), partly for technical reasons but
-        the previous behaviour was arbitrary and arguably less useful.
+        the previous behavior was arbitrary and arguably less useful.
         Correct upcasing of ß is normally SS, which is what Fupcase returns if
         given a string, or (for special purposes) ẞ.
 
@@ -50644,7 +50644,7 @@
         exactly what the output looks like (see
         https://github.com/JetBrains/kotlin/commit/\
         ffe8ae3840d7b9bdc82170c8181031f05ced68bd) and there is no reason to
-        risk mismatches or expensive backtracking (bug#18109).  Recognise
+        risk mismatches or expensive backtracking (bug#18109).  Recognize
         'info' level messages.  Convert to rx.
 
 2020-12-09  Lars Ingebrigtsen  <larsi@gnus.org>
@@ -50724,7 +50724,7 @@
 
 2020-12-09  Mattias Engdegård  <mattiase@acm.org>
 
-        Recognise ß properly as a lower-case letter (bug#11309)
+        Recognize ß properly as a lower-case letter (bug#11309)
 
         ß was incorrectly treated as a caseless character and thus not matched
         by the regexp [[:lower:]] (or, in case-folding mode, [[:upper:]]).
@@ -52985,7 +52985,7 @@
         Remove keyboard anachronisms from tutorial
 
         * etc/tutorials/TUTORIAL: Don't keep referring to EDIT as if it were a
-        common name for the Meta key; since a few decades back it's labelled
+        common name for the Meta key; since a few decades back it's labeled
         Alt (or Option or ⌥ but those keys usually also have 'alt' engraved on
         them).  Similarly, CTL is practically extinct and not worth
         mentioning.
@@ -54086,7 +54086,7 @@
 
 2020-11-19  Mattias Engdegård  <mattiase@acm.org>
 
-        More string-search optimisations
+        More string-search optimizations
 
         All-ASCII strings cannot have substrings with non-ASCII characters in
         them; use this fact to avoid searching entirely.
@@ -55761,7 +55761,7 @@
 
 2020-11-09  Harald Jörg  <haj@posteo.de>
 
-        cperl-mode: Indentation of ')' follows customisation
+        cperl-mode: Indentation of ')' follows customization
 
         * lisp/progmodes/cperl-mode.el (cperl-style-alist): Add
         cperl-close-paren-offset to the settings for PBP style.
@@ -56835,7 +56835,7 @@
         * lisp/emacs-lisp/easy-mmode.el (easy-mmode--arg-docstring):
         Only document the values we want to support, not the ones we
         actually support.
-        (define-minor-mode): Partially revert to previous behaviour.
+        (define-minor-mode): Partially revert to previous behavior.
 
 2020-11-01  Stefan Kangas  <stefan@marxist.se>
 
@@ -57163,7 +57163,7 @@
 
         Since a supplied test function can do anything, assoc is not
         side-effect-free (bug#44018).  However, with only two arguments it is
-        pure and should be optimised accordingly.
+        pure and should be optimized accordingly.
 
         * lisp/emacs-lisp/byte-opt.el (side-effect-free-fns): Remove 'assoc'.
         (byte-optimize-assoc): Constant-propagate through 2-arg assoc calls.
@@ -57767,7 +57767,7 @@
         Remove unused function in gdb-mi.el
 
         * lisp/progmodes/gdb-mi.el (gdb-var-evaluate-expression-handler):
-        Remove.  (It was left behind in an old code reorganisation.)
+        Remove.  (It was left behind in an old code reorganization.)
 
 2020-10-27  Lars Ingebrigtsen  <larsi@gnus.org>
 
@@ -58100,7 +58100,7 @@
         (shortdoc-section): Remove colors.
         (shortdoc-separator): New face.
         (shortdoc-display-group, shortdoc--display-function): Don't use
-        background colours, because that makes things harder to read.
+        background colors, because that makes things harder to read.
         Separate with a horizontal line instead.
 
 2020-10-26  Andrea Corallo  <akrl@sdf.org>
@@ -58386,7 +58386,7 @@
         * lisp/emacs-lisp/eldoc.el:
         (eldoc-echo-area-prefer-doc-buffer): Rename from
         eldoc-echo-area-prefer-doc-buffer
-        (eldoc-display-in-echo-area): Rework to honour
+        (eldoc-display-in-echo-area): Rework to honor
         eldoc-echo-area-prefer-doc-buffer.
 
 2020-10-24  João Távora  <joaotavora@gmail.com>
@@ -59827,7 +59827,7 @@
 
         mixal-mode: add missed instructions
 
-        Synchronises with latest released GNU MDK 1.2.11
+        Synchronizes with latest released GNU MDK 1.2.11
 
         * lisp/progmodes/mixal-mode.el (mixal-operation-codes-alist):
         Add missed instructions: SLB,SRB,JAE,JAO,JXE,JXO.
@@ -60030,7 +60030,7 @@
         (No mixed fonts): Remove references to MELPA.
         (How do the themes look like)
         (Enable and load, Load automatically)
-        (Configure options prior to loading, Customisation Options)
+        (Configure options prior to loading, Customization Options)
         (No mixed fonts, Command prompts, Mode line, Completion UIs)
         (Fringes, Line highlighting, Matching parentheses, Diffs)
         (Org mode blocks, Heading styles, Tweak colors (DIY))
@@ -60212,7 +60212,7 @@
         Sanitize ical data in gnus-icalendar-event-from-ical
 
         * lisp/gnus/gnus-icalendar.el (gnus-icalendar-event-from-ical):
-        Sanitise the data before passing it on to the constructor.  This
+        Sanitize the data before passing it on to the constructor.  This
         avoids backtraces on icals with extra, unknown slots (bug#43057).
 
 2020-10-16  Basil L. Contovounesios  <contovob@tcd.ie>
@@ -60262,7 +60262,7 @@
 
 2020-10-16  Lars Ingebrigtsen  <larsi@gnus.org>
 
-        Restore vc-revision-other-window buffer-changing behaviour
+        Restore vc-revision-other-window buffer-changing behavior
 
         * lisp/vc/vc.el (vc-revision-other-window): This function used to
         change the current buffer, but this was changed in the previous
@@ -60950,14 +60950,14 @@
         Add more numeric shortdocs
 
         * lisp/emacs-lisp/shortdoc.el (shortdoc-section)
-        (shortdoc-example): Lighten up colours on light backgrounds.
+        (shortdoc-example): Lighten up colors on light backgrounds.
 
 2020-10-11  Lars Ingebrigtsen  <larsi@gnus.org>
 
-        Tweak shortdoc colours on light backgrounds
+        Tweak shortdoc colors on light backgrounds
 
         * lisp/emacs-lisp/shortdoc.el (shortdoc-section)
-        (shortdoc-example): Lighten up colours on light backgrounds.
+        (shortdoc-example): Lighten up colors on light backgrounds.
 
 2020-10-11  Lars Ingebrigtsen  <larsi@gnus.org>
 
@@ -62739,10 +62739,10 @@
 
 2020-09-30  Lars Ingebrigtsen  <larsi@gnus.org>
 
-        Fix isearch-group-* colours on low-colour displays
+        Fix isearch-group-* colors on low-colour displays
 
         * lisp/isearch.el (isearch-group-1): On low-colour displays, just
-        use the normal isearch colour (bug#43702).
+        use the normal isearch color (bug#43702).
         (isearch-group-2 etc): Ditto.
 
 2020-09-30  Lars Ingebrigtsen  <larsi@gnus.org>
@@ -62818,13 +62818,13 @@
 
 2020-09-29  Lars Ingebrigtsen  <larsi@gnus.org>
 
-        Fix emacsclient -c foo.txt behaviour with many frames
+        Fix emacsclient -c foo.txt behavior with many frames
 
         * lisp/server.el (server-execute): Pass in whether we opened a new
         frame or not (bug#43645).
         (server-switch-buffer): Use this to switch to the requested buffer
         in the new frame if we have "emacsclient -c foo.txt", and retain
-        the old behaviour if it's "emacsclient foo.txt".
+        the old behavior if it's "emacsclient foo.txt".
 
 2020-09-29  Lars Ingebrigtsen  <larsi@gnus.org>
 
@@ -63038,7 +63038,7 @@
 
 2020-09-27  Mattias Engdegård  <mattiase@acm.org>
 
-        Minor string-search optimisations (bug#43598)
+        Minor string-search optimizations (bug#43598)
 
         * src/fns.c (Fstring_search): Perform cheap all-ASCII checks before more
         expensive ones.  Use a faster loop when searching for non-ASCII
@@ -63896,7 +63896,7 @@
 
         Speed up shr-insert slightly
 
-        * lisp/net/shr.el (shr-insert): Speed up regularising spaces --
+        * lisp/net/shr.el (shr-insert): Speed up regularizing spaces --
         the vast majority of the spaces are already OK, so transforming
         " " to " " just takes time.
 
@@ -65867,7 +65867,7 @@
 
 2020-09-11  Mattias Engdegård  <mattiase@acm.org>
 
-        Calc: regularise test names
+        Calc: regularize test names
 
         * test/lisp/calc/calc-tests.el (calc-remove-units, calc-extract-units)
         (calc-convert-units, calc-bug-23889, calc-trig, calc-format-radix)
@@ -66416,7 +66416,7 @@
 
 2020-09-08  João Távora  <joaotavora@gmail.com>
 
-        Change icomplete-show-matches-on-no-input behaviour for Icomplete only
+        Change icomplete-show-matches-on-no-input behavior for Icomplete only
 
         (Bug#19032), bug#43120
 
@@ -66552,7 +66552,7 @@
 
 2020-09-07  João Távora  <joaotavora@gmail.com>
 
-        Better explain behaviour of icomplete--sorted-completions
+        Better explain behavior of icomplete--sorted-completions
 
         * lisp/icomplete.el (icomplete--sorted-completions): Overhaul comment
 
@@ -67923,9 +67923,9 @@
 
 2020-08-30  Lars Ingebrigtsen  <larsi@gnus.org>
 
-        Tweak background colours in shr when there's indentation
+        Tweak background colors in shr when there's indentation
 
-        * lisp/net/shr.el (shr-fill-line): Get the background colour right
+        * lisp/net/shr.el (shr-fill-line): Get the background color right
         for the indentation, too.
 
 2020-08-30  Mauro Aranda  <maurooaranda@gmail.com>
@@ -68838,7 +68838,7 @@
 
 2020-08-25  Lars Ingebrigtsen  <larsi@gnus.org>
 
-        Extend background colours in shr
+        Extend background colors in shr
 
         * lisp/net/shr.el (shr-colorize-region): Extend backgrounds to the
         end (bug#43031).  This avoid ragged edges to the right when, for
@@ -69800,7 +69800,7 @@
 
         * lisp/simple.el (read-extended-command): Allow doing interactive
         searches over the completions (bug#12490).  This restores the
-        behaviour from Emacs 23 that was lost in Emacs 24.
+        behavior from Emacs 23 that was lost in Emacs 24.
 
 2020-08-19  Grégoire Jadi  <gregoire.jadi@univ-nantes.fr>
 
@@ -69870,7 +69870,7 @@
 
 2020-08-19  Tino Calancha  <tino.calancha@gmail.com>
 
-        Make thingatpt recognise files names with @ in them
+        Make thingatpt recognize files names with @ in them
 
         * lisp/thingatpt.el (thing-at-point-file-name-chars): Add @
         (Bug#24606).
@@ -72775,7 +72775,7 @@
         Tweak how whitespace-mode marks the end of the buffer
 
         * lisp/whitespace.el (whitespace-missing-newline-at-eof): Change
-        the colours to not be as angry.
+        the colors to not be as angry.
         (whitespace-color-on): Don't mark the end of the buffer if point
         is there.
 
@@ -74455,11 +74455,11 @@
 
 2020-07-25  Mattias Engdegård  <mattiase@acm.org>
 
-        Optimise 3-arg +, - and *
+        Optimize 3-arg +, - and *
 
         Turn (+ a b c) into (+ (+ a b) c), and do the same for - and *.
         The 2-arg operations have their own bytecode which results in a 1.5×
-        speed-up.  Furthermore, the transform enables other optimisations; for
+        speed-up.  Furthermore, the transform enables other optimizations; for
         example, (+ a 1 b) -> (+ (1+ a) b).
 
         * lisp/emacs-lisp/byte-opt.el (byte-optimize-plus, byte-optimize-minus)
@@ -74914,12 +74914,12 @@
 
 2020-07-17  Lars Ingebrigtsen  <larsi@gnus.org>
 
-        Fix NOT-CURRENT behaviour in text-property-search-backward
+        Fix NOT-CURRENT behavior in text-property-search-backward
 
         * lisp/emacs-lisp/text-property-search.el
-        (text-property-search-backward): Fix inconsistent behaviour of
+        (text-property-search-backward): Fix inconsistent behavior of
         S-TAB in eww (and other callers that use the NOT-CURRENT
-        behaviour) when there are adjacent elements
+        behavior) when there are adjacent elements
         (bug#39239).
 
 2020-07-17  Xu Chunyang  <xuchunyang56@gmail.com>
@@ -75842,7 +75842,7 @@
         (eldoc-documentation-compose, eldoc-documentation-default): Handle
         non-nil, non-string values of elements of
         eldoc-documentation-functions.  Use eldoc--handle-multiline.
-        (eldoc-print-current-symbol-info): Honour non-nil, non-string
+        (eldoc-print-current-symbol-info): Honor non-nil, non-string
         values returned by eldoc-documentation-callback.
         (eldoc--make-callback): Now also a function.
         (eldoc-documentation-default, eldoc-documentation-compose): Tweak docstring.
@@ -75894,7 +75894,7 @@
 
 2020-07-07  Mattias Engdegård  <mattiase@acm.org>
 
-        Optimise assoc and rassoc with symbol key to assq and rassq
+        Optimize assoc and rassoc with symbol key to assq and rassq
 
         This is the same transformation made for member to memq.
 
@@ -75926,9 +75926,9 @@
 
 2020-07-06  Mattias Engdegård  <mattiase@acm.org>
 
-        Simplify byte-code optimisation of pure functions
+        Simplify byte-code optimization of pure functions
 
-        Most pure functions need no explicit optimisation; we can do away with
+        Most pure functions need no explicit optimization; we can do away with
         almost all uses of byte-optimize-predicate (now renamed to
         byte-optimize-constant-args, since it is not just for predicates).
         Also remove some superfluous arity warnings.
@@ -76176,7 +76176,7 @@
 
         CC Mode: optimize for repeated simple operations.
 
-        Do this by recognising that unterminated strings in a buffer are typically
+        Do this by recognizing that unterminated strings in a buffer are typically
         going to be few and close together.  Also optimize code for C++ attributes.
 
         * lisp/progmodes/cc-defs.el (c-previous-single-property-change): New macro.
@@ -76492,7 +76492,7 @@
 
         * lisp/gnus/gnus-cloud.el (gnus-cloud-download-data): Return the
         result of calling `gnus-cloud-update-all' when UPDATE is t, as per the
-        documented behaviour. (Bug#40280)
+        documented behavior. (Bug#40280)
 
 2020-06-23  Andrea Corallo  <akrl@sdf.org>
 
@@ -76795,7 +76795,7 @@
         * lisp/progmodes/project.el (project-shell): Improve docstring to
         include information about an implementation detail.
 
-        * lisp/progmodes/project.el (project-eshell): Modelled after
+        * lisp/progmodes/project.el (project-eshell): Modeled after
         'project-shell', change default behavior such that we don't create too
         many eshell buffers by default.  Use universal argument to create
         subsequent buffers.
@@ -77656,14 +77656,14 @@
 
 2020-06-10  Mattias Engdegård  <mattiase@acm.org>
 
-        Improved light/dark colour predicate (bug#41544)
+        Improved light/dark color predicate (bug#41544)
 
-        Add a predicate, color-dark-p, for deciding whether a colour is more
+        Add a predicate, color-dark-p, for deciding whether a color is more
         readable with black or white as contrast.  It has experimentally been
         shown to be more accurate and robust than the various methods
         currently employed.
 
-        The new predicate compares the relative luminance of the colour to an
+        The new predicate compares the relative luminance of the color to an
         empirically determined cut-off value, and it seems to get it right in
         almost all cases, with no value leading to outright bad results.
 
@@ -77825,14 +77825,14 @@
 
 2020-06-08  Mattias Engdegård  <mattiase@acm.org>
 
-        More robust NS hex colour string parsing
+        More robust NS hex color string parsing
 
         Invalid arguments to color-values, such as "#abcdefg" or "#1234", or
         valid ones like "#111222333", should not yield nonsense values.
 
         * src/nsterm.m (ns_get_color):
         Only accept "#RGB" strings with 1-4 digits per components, equal number
-        of digits each, and no trailing characters.  Parse 12-bit colours
+        of digits each, and no trailing characters.  Parse 12-bit colors
         correctly.
 
 2020-06-08  Michael Albinus  <michael.albinus@gmx.de>
@@ -78280,7 +78280,7 @@
         Make color-distance symmetric and more accurate
 
         * src/xfaces.c (color_distance): Don't throw away the low 8 bits of
-        the colours, and make the function symmetric (bug41544)
+        the colors, and make the function symmetric (bug41544)
         (Fcolor_distance): Add caution about this not being a true metric.
         * test/src/xfaces-tests.el: New file.
 
@@ -78808,7 +78808,7 @@
         * lisp/international/ucs-normalize.el
         (ucs-normalize-hfs-nfd-post-read-conversion)
         (ucs-normalize-hfs-nfd-pre-write-conversion):
-        Use save-match-data to avoid match data clobber in normalisation.
+        Use save-match-data to avoid match data clobber in normalization.
         * test/lisp/international/ucs-normalize-tests.el
         (ucs-normalize-save-match-data): New test.
 
@@ -80375,7 +80375,7 @@
 
 2020-05-14  Mattias Engdegård  <mattiase@acm.org>
 
-        Fix customisation of mouse-drag-and-drop-region (bug#41251)
+        Fix customization of mouse-drag-and-drop-region (bug#41251)
 
         Reported by David Ponce.
 
@@ -80811,12 +80811,12 @@
         cc-mode: extend regexp used by ‘c-or-c++-mode’
 
         * lisp/progmodes/cc-mode.el (c-or-c++-mode--regexp): Expand the regexp to
-        match some more C++-only constructs and recognise a few more standard
+        match some more C++-only constructs and recognize a few more standard
         C++ header files.  Also make sure identifiers start with non-digit.
         (c-or-c++-mode): Add ‘(interactive)’ declaration.
 
         * test/lisp/progmodes/cc-mode-tests.el (c-or-c++-mode): Add test case
-        for the newly recognised constructs.
+        for the newly recognized constructs.
 
 2020-05-09  Michal Nazarewicz  <mina86@mina86.com>
 
@@ -82585,7 +82585,7 @@
         * src/nsterm.m (ns_parent_window_rect): New function.
         (NS_PARENT_WINDOW_LEFT_POS):
         (NS_PARENT_WINDOW_TOP_POS): Move to nsterm.m and simplify.
-        (ns_set_offset): Fix strange behaviours when using negative values.
+        (ns_set_offset): Fix strange behaviors when using negative values.
         (ns_set_window_size):
         (ns_set_undecorated):
         ([EmacsView windowDidResize:]):
@@ -82701,7 +82701,7 @@
 
 2020-04-16  Mattias Engdegård  <mattiase@acm.org>
 
-        Regularise some file-matching regexps
+        Regularize some file-matching regexps
 
         * admin/authors.el (authors-obsolete-files-regexps)
         (authors-renamed-files-regexps): Replace ^ and $ with \` and \'.
@@ -83231,7 +83231,7 @@
 
         * lisp/progmodes/cl-font-lock.el: Fix header and make it a minor mode
 
-        Change copyright to FSF and licence to GPLv3+.
+        Change copyright to FSF and license to GPLv3+.
         Tweak Commentary (the code doesn't seem to provide the lambda
         prettification mentioned).
 
@@ -83624,7 +83624,7 @@
 
         Avoid expensive recoding for ASCII identity cases (bug#40407)
 
-        Optimise for the common case of encoding or decoding an ASCII-only
+        Optimize for the common case of encoding or decoding an ASCII-only
         string using an ASCII-compatible coding, for file names in particular.
 
         * src/coding.c (string_ascii_p): New function.
@@ -83956,7 +83956,7 @@
 
 2020-04-03  Ashish SHUKLA  <ashish.is@lostca.se>
 
-        configure.ac: switch to POSIX sh behaviour
+        configure.ac: switch to POSIX sh behavior
 
 2020-04-03  Federico Tedin  <federicotedin@gmail.com>
 
@@ -85925,7 +85925,7 @@
         (ns_dumpglyphs_stretch): Remove unused variable.
         (ns_term_init):
         ([EmacsWindow setAppearance]): Only compile on macOS.
-        (ns_mouse_position): Make sure f is initialised on GNUstep.
+        (ns_mouse_position): Make sure f is initialized on GNUstep.
         * src/emacs.c (main): Move allocation of autorelease pool to before
         first use.
 
@@ -87644,7 +87644,7 @@
         2019-11-17 Prepend "unsigned" to MINI_GMP_LIMB_TYPE
         2019-11-17 Enable testing with different limb sizes (types)
         2019-11-20 Use already defined constants
-        2019-11-09 Avoid undefined behaviour with small limb sizes
+        2019-11-09 Avoid undefined behavior with small limb sizes
 
 2020-01-26  Paul Eggert  <eggert@cs.ucla.edu>
 
@@ -91015,7 +91015,7 @@
 
 2019-12-26  Mattias Engdegård  <mattiase@acm.org>
 
-        Optimise 'while' bodies for effect
+        Optimize 'while' bodies for effect
 
         * lisp/emacs-lisp/byte-opt.el (byte-optimize-form-code-walker):
         Treat all expressions in the body of 'while' as for-effect,
@@ -96974,7 +96974,7 @@
         * lisp/progmodes/compile.el (compilation-parse-errors):
         When 'omake' is enabled, allow error messages to be indented by 0 or 6
         spaces instead of any number of spaces, to avoid pathological
-        behaviour.
+        behavior.
         (compilation-error-regexp-alist-alist): Anchor the 'omake' pattern to
         bol for performance.  Repair the 'ruby-Test::Unit' pattern, which
         relied on the previously over-generous 'omake' hack.
@@ -96997,7 +96997,7 @@
 
         Speed up 'maven' compilation error message regexp
 
-        Anchor the regexp at line-start to prevent quadratic behaviour when
+        Anchor the regexp at line-start to prevent quadratic behavior when
         it doesn't match (bug#39595).  It's unclear whether the type tag, like
         [ERROR], is always present; we keep it optional just in case.
 
@@ -98121,7 +98121,7 @@
 
         Calc: fix interval entry (bug#39040)
 
-        * lisp/calc/calc.el (calcDigit-start): Initialise calc-prev-char to
+        * lisp/calc/calc.el (calcDigit-start): Initialize calc-prev-char to
         something more reasonable, so that non-algebraic entry of intervals
         whose start is a single digit, like (1..10), works properly.
         Reported by Michel Schinz.
@@ -98137,7 +98137,7 @@
 
         flymake: fix typo in variable binding (bug#38752)
 
-        This mistake was found by an experimental elisp optimiser.
+        This mistake was found by an experimental elisp optimizer.
 
         * lisp/progmodes/flymake-proc.el (flymake-proc-stop-all-syntax-checks):
         Add missing brackets.
@@ -99239,7 +99239,7 @@
 
         Improve sorting of flex completion style with non-nil minibuffer-default
 
-        This affects the behaviour of flex completion when there is a default
+        This affects the behavior of flex completion when there is a default
         completion and the user hasn't entered any input pattern to flex-match
         against.  It is most visible when icomplete-mode or fido-mode are
         being used in conjunctio.
@@ -99417,7 +99417,7 @@
         * lisp/emacs-lisp/regexp-opt.el (regexp-opt):
         * doc/lispref/searching.texi (Regexp Functions):
         Be more specific about how the KEEP-ORDER argument actually works.
-        If nil, the regexp guarantees a longest match; this is the behaviour
+        If nil, the regexp guarantees a longest match; this is the behavior
         that many callers implicitly rely on.
 
 2019-12-18  Michael Albinus  <michael.albinus@gmx.de>
@@ -101996,7 +101996,7 @@
         Handle FC_CHARCELL in xftfont_open
 
         * src/xftfont.c (xftfont_open): FC_CHARCELL is apparently an alias
-        for FC_DUAL used in some east Asian fonts (bug#35079).  Modelled
+        for FC_DUAL used in some east Asian fonts (bug#35079).  Modeled
         after a patch suggested by Kenichi Handa.
 
 2019-11-17  Eli Zaretskii  <eliz@gnu.org>
@@ -102147,7 +102147,7 @@
 
         When using this option and editing input, some transient situations
         may arise that lead to file-name shadowing, but that shouldn't
-        necessarily lead to auto-delete behaviour, which will be surprising.
+        necessarily lead to auto-delete behavior, which will be surprising.
 
         In '/foo/x/bar', if the user deletes the 'x', shadowing occurs, but
         probably shouldn't.  So, somewhat like ido-mode, only auto-tidy
@@ -102863,7 +102863,7 @@
         Add extra bindings to fido-mode.
 
         * lisp/icomplete.el (icomplete-fido-mode-map) : Add arrows and other
-        bindings to reproduce ido behaviour.
+        bindings to reproduce ido behavior.
 
 2019-11-09  Glenn Morris  <rgm@gnu.org>
 
@@ -105275,9 +105275,9 @@
 
 2019-10-23  Lars Ingebrigtsen  <larsi@gnus.org>
 
-        Make Gnus recognise "git am" diffs in all groups
+        Make Gnus recognize "git am" diffs in all groups
 
-        * lisp/gnus/mm-uu.el (mm-uu-diff-groups-regexp): Recognise diffs
+        * lisp/gnus/mm-uu.el (mm-uu-diff-groups-regexp): Recognize diffs
         in all groups (bug#32730).
 
 2019-10-22  Stefan Kangas  <stefankangas@gmail.com>
@@ -107975,7 +107975,7 @@
 
 2019-10-09  Lars Ingebrigtsen  <larsi@gnus.org>
 
-        Fix possible initialisation error in shell-mode-map
+        Fix possible initialization error in shell-mode-map
 
         * lisp/shell.el (shell-mode-map): Comint is the parent mode, so
         there's no need to explicitly make it a parent map here (bug#25187).
@@ -108323,10 +108323,10 @@
 
 2019-10-06  Lars Ingebrigtsen  <larsi@gnus.org>
 
-        Fix the colours on Motif horizontal scroll bars
+        Fix the colors on Motif horizontal scroll bars
 
         * src/xterm.c (x_create_horizontal_toolkit_scroll_bar): Use the
-        same foreground/background colours as the vertical scroll bar
+        same foreground/background colors as the vertical scroll bar
         (bug#37359).
 
 2019-10-06  Lars Ingebrigtsen  <larsi@gnus.org>
@@ -109177,7 +109177,7 @@
 
         C++ Mode: Fontify correctly declarators with identifier preceded by &
 
-        The problem was bar in the following being spuriously recognised as a
+        The problem was bar in the following being spuriously recognized as a
         function, and foo as a type, as though the & were a *: Foo foo (&bar);.
 
         * lisp/progmodes/cc-engine.el (c-forward-decl-or-cast-1): New variable
@@ -109644,9 +109644,9 @@
 
 2019-09-29  Lars Ingebrigtsen  <larsi@gnus.org>
 
-        Allow customising pdf-to-text parameters
+        Allow customizing pdf-to-text parameters
 
-        * lisp/doc-view.el (doc-view-pdf->txt): Allow customising the
+        * lisp/doc-view.el (doc-view-pdf->txt): Allow customizing the
         parameters (bug#8519).
         (doc-view-pdftotext-program-args): New variable.
 
@@ -112145,12 +112145,12 @@
 
 2019-09-14  Lars Ingebrigtsen  <larsi@gnus.org>
 
-        Add default foreground colours to SVG images
+        Add default foreground colors to SVG images
 
-        * lisp/net/shr.el (svg--wrap-svg): Add a default foreground colour
+        * lisp/net/shr.el (svg--wrap-svg): Add a default foreground color
         to SVG images (bug#37159).  This helps with images like the ones
         in https://en.wikipedia.org/wiki/Banach_fixed-point_theorem that
-        specify no foreground or background colours.
+        specify no foreground or background colors.
         (shr-parse-image-data): Use it.
 
 2019-09-14  Lars Ingebrigtsen  <larsi@gnus.org>
@@ -112955,7 +112955,7 @@
 
         * lisp/epa-file.el (epa-file--replace-text): Gingerly replace the
         text in the buffer to preserve as many markers as possible
-        (bug#34720).  This emulates the behaviour of Finsert_file_contents
+        (bug#34720).  This emulates the behavior of Finsert_file_contents
         more accurately.
         (epa-file-decode-and-insert): Remove compat code.
         (epa-file-insert-file-contents): Use the new function.
@@ -112967,7 +112967,7 @@
         Repair change to compilation-context-lines (bug#36832)
 
         * lisp/progmodes/compile.el (compilation-set-window):
-        Restore proper behaviour when compilation-context-lines is nil,
+        Restore proper behavior when compilation-context-lines is nil,
         which is the default.
 
 2019-09-04  Michael Albinus  <michael.albinus@gmx.de>
@@ -113647,7 +113647,7 @@
 
 2019-08-29  Lars Ingebrigtsen  <larsi@gnus.org>
 
-        Tweak shr background colour handling
+        Tweak shr background color handling
 
         * lisp/net/shr.el (shr-fill-line): Extend the background to the
         end of the line when folding lines.
@@ -115755,7 +115755,7 @@
 
         * lisp/progmodes/cc-engine.el (c-beginning-of-statement-1): Check for
         operators which cannot start a statement, which may follow a closing brace.
-        Don't recognise an end of statement in such a case.
+        Don't recognize an end of statement in such a case.
 
         * lisp/progmodes/cc-langs.el (c-operator-re, c-bin-tern-operators)
         (c-unary-operators, c-non-after-{}-operators, c-non-after-{}-ops-re): New lang
@@ -116230,11 +116230,11 @@
 
 2019-08-04  Lars Ingebrigtsen  <larsi@gnus.org>
 
-        Capitalise a couple of node names
+        Capitalize a couple of node names
 
-        * doc/lispref/functions.texi (Advising Functions): Capitalise node
+        * doc/lispref/functions.texi (Advising Functions): Capitalize node
         names (bug#17717).
-        (Advice Combinators, Porting Old Advice): Capitalise.
+        (Advice Combinators, Porting Old Advice): Capitalize.
 
 2019-08-04  Michael Heerdegen  <michael_heerdegen@web.de>
 
@@ -116624,9 +116624,9 @@
 
 2019-08-02  Lars Ingebrigtsen  <larsi@gnus.org>
 
-        Make Info-find-file ensure that Info is initialised
+        Make Info-find-file ensure that Info is initialized
 
-        * lisp/info.el (Info-find-file): Ensure that Info is initialised,
+        * lisp/info.el (Info-find-file): Ensure that Info is initialized,
         because libraries call that function (bug#19880).
 
 2019-08-02  Lars Ingebrigtsen  <larsi@gnus.org>
@@ -116743,7 +116743,7 @@
         This fixes bug #36801.
 
         * lisp/progmodes/cc-langs.el (c-pre-lambda-tokens-re): Use c-make-keywords-re
-        rather than regexp-opt to make an optimised regexp out of a list of tokens.
+        rather than regexp-opt to make an optimized regexp out of a list of tokens.
 
 2019-08-02  Lars Ingebrigtsen  <larsi@gnus.org>
 
@@ -116843,7 +116843,7 @@
         Document batch-byte-compile directory behavior
 
         * lisp/emacs-lisp/bytecomp.el (batch-byte-compile): Document the
-        behaviour with directories (bug#20867).
+        behavior with directories (bug#20867).
 
 2019-08-01  Stefan Monnier  <monnier@iro.umontreal.ca>
 
@@ -118335,7 +118335,7 @@
 
 2019-07-25  Lars Ingebrigtsen  <larsi@gnus.org>
 
-        Tweak the behaviour of thing-at-point--end-of-sexp
+        Tweak the behavior of thing-at-point--end-of-sexp
 
         * lisp/thingatpt.el (thing-at-point--end-of-sexp): Don't return
         nil when called with point between two parentheses (bug#29499).
@@ -118387,7 +118387,7 @@
 
         Make `C-u w' in the Gnus Summary buffer open externally
 
-        * doc/misc/gnus.texi (Article Commands): Document new behaviour.
+        * doc/misc/gnus.texi (Article Commands): Document new behavior.
 
         * lisp/gnus/gnus-sum.el (gnus-shorten-url): New function.
         (gnus-summary-browse-url): Change function to make `C-u' use the
@@ -119763,9 +119763,9 @@
 
 2019-07-14  Lars Ingebrigtsen  <larsi@gnus.org>
 
-        Tweak background colour handling in shr
+        Tweak background color handling in shr
 
-        * lisp/net/shr.el (shr-fill-line): Keep the background colour on
+        * lisp/net/shr.el (shr-fill-line): Keep the background color on
         the newline and the indentation.
 
 2019-07-14  Lars Ingebrigtsen  <larsi@gnus.org>
@@ -120232,7 +120232,7 @@
         * lisp/epg.el (epg-start-encrypt)
         * lisp/gnus/mml-sec.el (mml-secure-epg-encrypt): When
         'mml-secure-openpgp-sign-with-sender' is non-nil message sender's
-        email address (in addition to its old behaviour) will also be used
+        email address (in addition to its old behavior) will also be used
         to set gpg's "--sender email@domain" option.
 
 2019-07-12  Paul Eggert  <eggert@cs.ucla.edu>
@@ -120443,7 +120443,7 @@
         Support program switches in 'comint-run' command
 
         * etc/NEWS:
-        * doc/emacs/misc.texi: Describe new behaviour (bug#33037).
+        * doc/emacs/misc.texi: Describe new behavior (bug#33037).
         * lisp/comint.el (comint-run): Add optional SWITCHES argument.
         With prefix argument C-u, prompt for SWITCHES.
 
@@ -121588,11 +121588,11 @@
 
 2019-07-04  Mattias Engdegård  <mattiase@acm.org>
 
-        Optimise more inputs to `regexp-opt' (bug#36444)
+        Optimize more inputs to `regexp-opt' (bug#36444)
 
         Use a more precise test to determine whether the input to `regexp-opt'
-        is safe to optimise when KEEP-ORDER is non-nil, permitting more inputs
-        to be optimised than before.  For example, ("good" "goal" "go") is now
+        is safe to optimize when KEEP-ORDER is non-nil, permitting more inputs
+        to be optimized than before.  For example, ("good" "goal" "go") is now
         accepted.
 
         * lisp/emacs-lisp/regexp-opt.el (regexp-opt):
@@ -122390,7 +122390,7 @@
 
 2019-06-27  Lars Ingebrigtsen  <larsi@gnus.org>
 
-        Mention the new emacsclient -a/--eval behaviour
+        Mention the new emacsclient -a/--eval behavior
 
 2019-06-27  Lars Ingebrigtsen  <larsi@gnus.org>
 
@@ -122568,11 +122568,11 @@
 
         `replace-regexp-in-string' omits the first START characters of the
         input string in its return value.  This is a clear bug, but fixing it
-        probably causes more trouble; document the behaviour instead (bug#36372).
+        probably causes more trouble; document the behavior instead (bug#36372).
 
         * doc/lispref/searching.texi (Search and Replace)
         * lisp/subr.el (replace-regexp-in-string):
-        Document current behaviour.
+        Document current behavior.
 
 2019-06-26  Stefan Monnier  <monnier@iro.umontreal.ca>
 
@@ -122835,7 +122835,7 @@
 
         * lisp/view.el (view-search): Jump to the next/prev occurrence of
         the search, even if it's displayed in the buffer (bug#18131).
-        This seems more logical than the previous (undocumented) behaviour.
+        This seems more logical than the previous (undocumented) behavior.
 
 2019-06-25  Paul Eggert  <eggert@cs.ucla.edu>
 
@@ -123019,7 +123019,7 @@
         (goto-address-uri-schemes): Ditto.
         (goto-address-url-regexp): Use them to compose the final regexp.
 
-        * lisp/net/goto-addr.el: The URI schemes to be recognised by
+        * lisp/net/goto-addr.el: The URI schemes to be recognized by
         `goto-address-mode' were not regexp-quoted (Bug#23343).
 
 2019-06-25  Tino Calancha  <f92capac@gmail.com>
@@ -123607,7 +123607,7 @@
 
         Make ls-lisp--dired ape dired-noselect more closely
 
-        * lisp/ls-lisp.el (ls-lisp--dired): Emulate the behaviour of
+        * lisp/ls-lisp.el (ls-lisp--dired): Emulate the behavior of
         non-ls-lisp.el dired better by defaulting to default-directory as
         dired-noselect does (bug#35390).
 
@@ -126549,7 +126549,7 @@
         (global-auto-revert-mode): Don't use
         `after-set-visited-file-name-hook' here.
         (auto-revert-set-visited-file-name): Rename from
-        `auto-revert--global-set-visited-file-name' and generalise.
+        `auto-revert--global-set-visited-file-name' and generalize.
         * test/lisp/autorevert-tests.el (auto-revert-test06-write-file): New.
 
 2019-06-11  Michael Albinus  <michael.albinus@gmx.de>
@@ -130991,10 +130991,10 @@
 
 2019-05-05  Mattias Engdegård  <mattiase@acm.org>
 
-        Reorganise (auto-)revert nodes in the manual
+        Reorganize (auto-)revert nodes in the manual
 
         Put all information about auto-revert into a section of its own, and
-        organise the text in a more logical way.  Previously it was mainly
+        organize the text in a more logical way.  Previously it was mainly
         described in the section about reverting (bug#35418).
 
         * doc/emacs/files.texi (Files): Adjust menu.
@@ -133936,7 +133936,7 @@
         * lisp/progmodes/cc-engine.el (c-looking-at-or-maybe-in-bracelist): On
         detection of such a ref-qualifier, set braceassignp to nil.  When this
         variable has a nil value, return nil as the value of the function.  On
-        encountering a } when scanning backwards, recognise this as the end of a
+        encountering a } when scanning backwards, recognize this as the end of a
         previous construct and stop the scan.
 
 2019-04-12  Stefan Monnier  <monnier@iro.umontreal.ca>
@@ -138187,7 +138187,7 @@
 
         * doc/lispref/searching.texi (Regular Expression Functions):
         * etc/NEWS:
-        Document the new behaviour.
+        Document the new behavior.
         * lisp/emacs-lisp/regexp-opt.el (regexp-opt):
         Return a never-match regexp for empty inputs.
 
@@ -139904,7 +139904,7 @@
         xref-find-definitions or xref-find-definitions-other-window how to
         choose a window for the *xref* buffer or how to find windows for
         displaying the results after choosing a candidate.  This patch makes
-        that task easier, but keeps the current behaviour intact.
+        that task easier, but keeps the current behavior intact.
 
 
         * lisp/progmodes/xref.el (xref--show-pos-in-buf): Simplify.
@@ -140664,7 +140664,7 @@
         image-mode: Make parameters buffer-local
 
         Image parameters were treated as image specific, but because they
-        actually were global variables, their behaviour transferred to new
+        actually were global variables, their behavior transferred to new
         images.
         * lisp/image-mode.el (image-transform-resize, image-transform-scale)
         (image-transform-rotation): Declare with defvar-local.  (Bug#33990)
@@ -140804,7 +140804,7 @@
         To resolve this confusion, never cycle with C-M-i in icomplete:
         non-ambiguous cycling can be achieved with C-. and C-,
 
-        The former behaviour can still be restored with:
+        The former behavior can still be restored with:
 
         (define-key icomplete-minibuffer-map (kbd "C-M-i") 'minibuffer-force-complete)
 
@@ -140929,7 +140929,7 @@
         really reindented.  Rewrite comment.
         (electric-layout-allow-duplicate-newlines): New variable.
         (electric-layout-post-self-insert-function-1): Rewrite comments.
-        Honours electric-layout-allow-duplicate-newlines.  Don't reindent
+        Honors electric-layout-allow-duplicate-newlines.  Don't reindent
         previous line because racecar.
 
         * test/lisp/electric-tests.el: New test.
@@ -140944,7 +140944,7 @@
 
         Remove tests of electric-pair-mode and CC-based modes
 
-        The behaviour previously observed in cc-mode-based-modes (and every
+        The behavior previously observed in cc-mode-based-modes (and every
         other major-mode) when electric-pair-mode or electric-layout-mode is
         turned on may no longer be observed: this because CC-mode goes around
         the generic implementation of electric-pair-mode.
@@ -142071,10 +142071,10 @@
 
 2019-01-10  Alan Third  <alan@idiocy.org>
 
-        Fix drag and drop behaviour on NS (bug#30929)
+        Fix drag and drop behavior on NS (bug#30929)
 
         * doc/emacs/macos.texi (Mac / GNUstep Events): Describe the new drag
-        and drop behaviour.
+        and drop behavior.
         * lisp/term/ns-win.el (ns-drag-n-drop): Handle the new event format.
         (ns-drag-n-drop-other-frame):
         (ns-drag-n-drop-as-text):
@@ -148771,7 +148771,7 @@
         2018-09-09 mktime: simplify in prep for glibc merge
         2018-09-07 intprops: minor clarification of code
         2018-09-06 stddef: Override max_align_t on NetBSD 8.0/x86
-        2018-09-06 fcntl: Fix F_DUPFD_CLOEXEC behaviour on Haiku
+        2018-09-06 fcntl: Fix F_DUPFD_CLOEXEC behavior on Haiku
         2018-09-06 strtoll, strtoull: Rely on limits-h module
         2018-09-06 limits-h: Provide numerical limits macros
         2018-09-06 fcntl: Don't access nonexistent optional argument
@@ -151024,7 +151024,7 @@
 
 2018-08-09  João Távora  <joaotavora@gmail.com>
 
-        Synchronous JSONRPC requests can be cancelled on user input
+        Synchronous JSONRPC requests can be canceled on user input
 
         This allows building more responsive interfaces, such as a snappier
         completion backend.
@@ -154022,7 +154022,7 @@
 
         Tweak previous gnutls change for efficiency
 
-        * src/gnutls.c (Fgnutls_peer_status): Minor optimisation to avoid
+        * src/gnutls.c (Fgnutls_peer_status): Minor optimization to avoid
         computing the topmost certificate twice.
 
 2018-06-24  Lars Ingebrigtsen  <larsi@gnus.org>
@@ -157117,7 +157117,7 @@
 
         * lisp/window.el (scroll-other-window-down):
         Move to src/window.c as Fscroll_other_window_down.
-        * src/window.c (scroll_command): Generalise for arbitrary windows.
+        * src/window.c (scroll_command): Generalize for arbitrary windows.
         (Fscroll_up, Fscroll_down): Use scroll_command with selected_window.
         (Fscroll_other_window, Fscroll_other_window_down):
         Rewrite in terms of scroll_command.
@@ -157841,7 +157841,7 @@
         326a296 ; * etc/NEWS: Mention 'display-buffer-in-major-side-window' c...
         3bdc9a1 Fix flyspell-auto-correct-previous-word broken by recent change
         a539eb5 * test/src/lread-tests.el (lread-test-bug-31186): New test.
-        3fa472b Fix undefined behaviour while looking for lexical-binding fil...
+        3fa472b Fix undefined behavior while looking for lexical-binding fil...
         4341aac Minor wording improvement in "Bookmarks"
 
         Conflicts:
@@ -158441,7 +158441,7 @@
         * lisp/gnus/gnus-group.el (gnus-update-group-mark-positions):
         Rewrite a call to string-to-multibyte that didn't even work.
         After the rewrite it gives the correct result and should allow
-        people to customise Gnus group process mark positions (but that's
+        people to customize Gnus group process mark positions (but that's
         a pretty obscure feature).
 
 2018-04-14  Lars Ingebrigtsen  <larsi@gnus.org>
@@ -158767,9 +158767,9 @@
 
         From the discussion on the ding mailing list, I said:
 
-        I think the colours should be reverted back to what they were before the
+        I think the colors should be reverted back to what they were before the
         change.  Normal text should be white on black (if you have a dark
-        background), and colours should be used to emphasise or de-emphasise
+        background), and colors should be used to emphasize or de-emphasize
         certain text.  Following that principle, normal Gnus groups should be
         white, not ... er...  what are they now?  Teal?
 
@@ -160198,8 +160198,8 @@
         and numeric conversion in function in order to parse -signal and
         -SIGNALNAME correctly.
         * doc/misc/eshell.texi (kill): Update docs to reflect new function
-        behaviour.
-        * etc/NEWS: Mention new eshell/kill behaviour.
+        behavior.
+        * etc/NEWS: Mention new eshell/kill behavior.
 
 2018-03-25  Noam Postavsky  <npostavs@gmail.com>
 
@@ -164749,7 +164749,7 @@
 
 2018-01-16  Alan Mackenzie  <acm@muc.de>
 
-        C++ Mode: Fontify correctly uniform initialisation with inner parentheses.
+        C++ Mode: Fontify correctly uniform initialization with inner parentheses.
 
         E.g.: someStruct x ( (nullptr != y) ? 3 : 4 )
         Also fontify declarations of function pointers correctly.
@@ -168798,7 +168798,7 @@
         413978727c Simplify Flymake user documentation
         6ff18c3995 * etc/NEWS: Mention the new version of Org.
         b78332c3c6 Don't use (format "%s" ...) for string copying (Bug#28774)
-        078fb7f6df Make frame-list-z-order on NS match Windows behaviour (bug...
+        078fb7f6df Make frame-list-z-order on NS match Windows behavior (bug...
 
         # Conflicts:
         #       etc/NEWS
@@ -186364,7 +186364,7 @@
 
         * lisp/progmodes/flymake-proc.el
         (flymake-proc--diagnostics-for-pattern): Rewrite (using cl-loop) to
-        honour more sophisticated flymake-proc-diagnostic-type-pred.
+        honor more sophisticated flymake-proc-diagnostic-type-pred.
         (flymake-warning-re): Is now an obsolete alias for
         flymake-proc-diagnostic-type-pred.
         (flymake-proc-diagnostic-type-pred): Rename and augment from
@@ -202820,7 +202820,7 @@
         titlecase_char_table member.  It’s set to the ‘titlecase’ Unicode
         property table if capitalization has been requested.
         (case_character): Make use of the titlecase_char_table to title-case
-        initial characters when capitalising.
+        initial characters when capitalizing.
 
         * test/src/casefiddle-tests.el (casefiddle-tests--characters,
         casefiddle-tests-casing): Update test cases which are now passing.
@@ -205075,7 +205075,7 @@
 
         * lisp/net/tramp.el (tramp-completion-mode): Fix docstring.
         (tramp-completion-mode-p): Optional parameter VEC.  Replace
-        check for `last-input-event' by analysing VEC argument.
+        check for `last-input-event' by analyzing VEC argument.
         (tramp-error-with-buffer, tramp-file-name-handler)
         (tramp-connectable-p, tramp-handle-file-name-as-directory):
         * lisp/net/tramp-sh.el (tramp-maybe-open-connection): Use it.
diff --git a/admin/notes/spelling b/admin/notes/spelling
index b783227a37a..b20f68bf624 100644
--- a/admin/notes/spelling
+++ b/admin/notes/spelling
@@ -6,6 +6,6 @@ Re "behavior" vs "behaviour", etc.
   for new text (code, docs), choose the US variant.
 
 - It's probably (IMHO --ttn, 2017-10-13) not a high priority to
-  change existing text; use your best judgement (ask if unsure).
+  change existing text; use your best judgment (ask if unsure).
 
 - https://lists.gnu.org/r/emacs-devel/2005-06/msg00489.html
diff --git a/doc/lispref/searching.texi b/doc/lispref/searching.texi
index 86f418442d5..fe4de0abbb2 100644
--- a/doc/lispref/searching.texi
+++ b/doc/lispref/searching.texi
@@ -1897,7 +1897,7 @@ attempts.  Other zero-width assertions may also bring benefits by
 causing a match to fail early.
 
 @item
-Avoid or-patterns in favour of character alternatives: write
+Avoid or-patterns in favor of character alternatives: write
 @samp{[ab]} instead of @samp{a\|b}.  Recall that @samp{\s-} and @samp{\sw}
 are equivalent to @samp{[[:space:]]} and @samp{[[:word:]]}, respectively.
 
@@ -1932,7 +1932,7 @@ purposes.
 
 @ifnottex
 @item
-Consider using @code{rx} (@pxref{Rx Notation}); it can optimise some
+Consider using @code{rx} (@pxref{Rx Notation}); it can optimize some
 or-patterns automatically and will never introduce capturing groups
 unless explicitly requested.
 @end ifnottex
diff --git a/doc/lispref/text.texi b/doc/lispref/text.texi
index 958da2f3609..6ac631ebbfc 100644
--- a/doc/lispref/text.texi
+++ b/doc/lispref/text.texi
@@ -3313,7 +3313,7 @@ for @var{object} is the current buffer.
 Search for the next region that has text property @var{prop} set to
 @var{value} according to @var{predicate}.
 
-This function is modelled after @code{search-forward} and friends in
+This function is modeled after @code{search-forward} and friends in
 that it moves point, but it returns a structure that describes the
 match instead of returning it in @code{match-beginning} and friends.
 
diff --git a/doc/lispref/variables.texi b/doc/lispref/variables.texi
index 07979b0d91e..b9f50ecc6ac 100644
--- a/doc/lispref/variables.texi
+++ b/doc/lispref/variables.texi
@@ -326,7 +326,7 @@ Example of a loop summing a list of numbers:
 
 @anchor{Tail recursion}
 Recursive calls to @var{name} that occur in @emph{tail
-positions} in @var{body} are guaranteed to be optimised as @emph{tail
+positions} in @var{body} are guaranteed to be optimized as @emph{tail
 calls}, which means that they will not consume any additional stack
 space no matter how deeply the recursion runs.  Such recursive calls
 will effectively jump to the top of the loop with new values for the
@@ -1346,7 +1346,7 @@ disappear without prior notice.
 
 The byte-compiler can also warn about lexical variables that are
 special in other Emacs Lisp files, often indicating a missing
-@code{defvar} declaration.  This useful but somewhat specialised check
+@code{defvar} declaration.  This useful but somewhat specialized check
 requires three steps:
 
 @enumerate
diff --git a/doc/misc/gnus.texi b/doc/misc/gnus.texi
index d5a550836aa..d608f3113fd 100644
--- a/doc/misc/gnus.texi
+++ b/doc/misc/gnus.texi
@@ -5070,7 +5070,7 @@ Opening bracket for adopted articles.  The default is @samp{<}.
 
 @item ]
 Closing bracket, which is normally @samp{]}, but can also be @samp{>}
-for adopted articles.  This can be customised using following settings:
+for adopted articles.  This can be customized using following settings:
 
 @table @code
 @item gnus-sum-closing-bracket
diff --git a/doc/misc/modus-themes.org b/doc/misc/modus-themes.org
index 6b1d91c396a..5451f806736 100644
--- a/doc/misc/modus-themes.org
+++ b/doc/misc/modus-themes.org
@@ -1736,7 +1736,7 @@ things with precision ([[#h:bf1c82f2-46c7-4eb2-ad00-dd11fdd8b53f][Customization
 This section is of interest only to users who are prepared to maintain
 their own local tweaks and who are willing to deal with any possible
 incompatibilities between versioned releases of the themes.  As such,
-they are labelled as "do-it-yourself" or "DIY".
+they are labeled as "do-it-yourself" or "DIY".
 
 ** Per-theme customization settings
 :properties:
@@ -2050,7 +2050,7 @@ this example:
 Whenever we enter a ~diff-mode~ buffer, we now get a magenta-colored
 region.
 
-Perhaps you may wish to generalise those findings in to a set of
+Perhaps you may wish to generalize those findings in to a set of
 functions that also accept an arbitrary face.  We shall leave the
 experimentation up to you.
 
@@ -2318,7 +2318,7 @@ come into effect: subtle ochre tints for Modus Operandi and night sky
 shades for Modus Vivendi.  Switching between the two themes, such as
 with {{{kbd(M-x modus-themes-toggle)}}} will also use the overrides.
 
-Given that this is a user-level customisation, one is free to implement
+Given that this is a user-level customization, one is free to implement
 whatever color values they desire, even if the possible combinations
 fall below the minimum 7:1 contrast ratio that governs the design of the
 themes (the WCAG AAA legibility standard).  Alternatively, this can also
diff --git a/doc/misc/org.org b/doc/misc/org.org
index b1dc7084986..9f69c684318 100644
--- a/doc/misc/org.org
+++ b/doc/misc/org.org
@@ -2866,12 +2866,12 @@ For more information and examples see the [[https://orgmode.org/worg/org-tutoria
 - transpose ::
 
   When =y=, =yes=, or =t= attempt to transpose the table data before
-  plotting.  Also recognises the shorthand option =trans=.
+  plotting.  Also recognizes the shorthand option =trans=.
 
 - =type= ::
 
   Specify the type of the plot, by default one of  =2d=, =3d=, =radar=, or =grid=.
-  Available types can be customised with ~org-plot/preset-plot-types~.
+  Available types can be customized with ~org-plot/preset-plot-types~.
 
 - =with= ::
 
diff --git a/doc/misc/tramp.texi b/doc/misc/tramp.texi
index 2d3657b6eaf..06df3192968 100644
--- a/doc/misc/tramp.texi
+++ b/doc/misc/tramp.texi
@@ -2402,7 +2402,7 @@ example below:
 @end lisp
 
 @vindex password-word-equivalents
-This user option is, by default, initialised from
+This user option is, by default, initialized from
 @code{password-word-equivalents} when @value{tramp} is loaded, and it
 is usually more convenient to add new passphrases to that user option
 instead of altering this user option.
@@ -5454,7 +5454,7 @@ The verbosity levels are
 
 With @code{tramp-verbose} greater than or equal to 4, messages are
 also written to a @value{tramp} debug buffer.  Such debug buffers are
-essential to bug and problem analyses.  For @value{tramp} bug reports,
+essential to bug and problem analyzes.  For @value{tramp} bug reports,
 set the @code{tramp-verbose} level to 6 (@pxref{Bug Reports}).
 
 The debug buffer is in
diff --git a/etc/NEWS b/etc/NEWS
index 722b0da696b..1aa16a4c059 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -1449,7 +1449,7 @@ the entire buffer.
 
 *** 'so-long-target-modes' now includes 'fundamental-mode' by default.
 This means that 'global-so-long-mode' will also process files which were
-not recognised.  (This only has an effect if 'set-auto-mode' chooses
+not recognized.  (This only has an effect if 'set-auto-mode' chooses
 'fundamental-mode'; buffers which are simply in 'fundamental-mode' by
 default are unaffected.)
 
@@ -1763,8 +1763,8 @@ If non-nil (the default), create registry entries for all messages.
 If nil, don't automatically create entries, they must be created
 manually.
 
-*** New user options to customise the summary line specs "%[" and "%]".
-Four new options introduced in customisation group
+*** New user options to customize the summary line specs "%[" and "%]".
+Four new options introduced in customization group
 'gnus-summary-format'.  These are 'gnus-sum-opening-bracket',
 'gnus-sum-closing-bracket', 'gnus-sum-opening-bracket-adopted', and
 'gnus-sum-closing-bracket-adopted'.  Their default values are "[", "]",
@@ -2102,7 +2102,7 @@ modified flag.  The default is nil, to preserve the old behavior.
 ** CC mode
 
 *** Added support for Doxygen documentation style.
-'doxygen' is now a valid 'c-doc-comment-style' which recognises all
+'doxygen' is now a valid 'c-doc-comment-style' which recognizes all
 comment styles supported by Doxygen (namely '///', '//!', '/** … */'
 and '/*! … */'.  'gtkdoc' remains the default for C and C++ modes; to
 use 'doxygen' by default one might evaluate:
diff --git a/etc/ORG-NEWS b/etc/ORG-NEWS
index 37a39131d93..3c164b1282f 100644
--- a/etc/ORG-NEWS
+++ b/etc/ORG-NEWS
@@ -293,7 +293,7 @@ with width equal to the pixel-width of the buffer text multiplied by 0.7.
 This functionality is implemented in a new function,
 ~org-display-inline-image--width~ which contains the width
 determination logic previously in ~org-display-inline-images~ and the
-new behaviour.
+new behavior.
 
 ** New options
 *** Option ~org-hidden-keywords~ now also applies to #+SUBTITLE:
@@ -311,7 +311,7 @@ descriptions.
 *** New option ~org-id-ts-format~
 
 Earlier, IDs generated using =ts= method had a hard-coded format (i.e. =20200923T160237.891616=).
-The new option allows user to customise the format.
+The new option allows user to customize the format.
 Defaults are unchanged.
 
 *** New argument for ~file-desc~ babel header
@@ -503,16 +503,16 @@ heading, except return nil.
 
 *** Faces of all the heading text elements now conform to the headline face
 
-In the past, faces of todo keywords, emphasised text, tags, and
+In the past, faces of todo keywords, emphasized text, tags, and
 priority cookies inherited =default= face.  The resulting headline
 fontification was not always consistent, as discussed in [[msg::87h7sawubl.fsf@protesilaos.com][this bug
 report]].  Now, the relevant faces adapt to face used to fontify the
 current headline level.
 
-Users who prefer to keep the old behaviour should change their face
-customisation explicitly stating that =default= face is inherited.
+Users who prefer to keep the old behavior should change their face
+customization explicitly stating that =default= face is inherited.
 
-Example of old face customisation:
+Example of old face customization:
 
 #+begin_src emacs-lisp
 (setq org-todo-keyword-faces '(("TODO"
@@ -520,7 +520,7 @@ Example of old face customisation:
                                 :height 0.75)))
 #+end_src
 
-To preserve the old behaviour the above customisation should be
+To preserve the old behavior the above customization should be
 changed to
 
 #+begin_src emacs-lisp
@@ -543,7 +543,7 @@ The function does not allow for a third optional parameter anymore.
 *** LaTeX environment =#+results= are now removed
 
 If a babel src block produces a raw LaTeX environment, it will now be
-recognised as a result, and so replaced when re-evaluated.
+recognized as a result, and so replaced when re-evaluated.
 
 *** Tag completion now uses =completing-read-multiple=
 
@@ -681,7 +681,7 @@ enabled, and point is neither in a table nor on a timestamp or a link:
 - =C-j= (bound to the new command ~org-return-and-maybe-indent~)
   merely inserts a newline.
 
-To get the previous behaviour back, disable ~electric-indent-mode~
+To get the previous behavior back, disable ~electric-indent-mode~
 explicitly:
 
 #+begin_src emacs-lisp
@@ -1029,7 +1029,7 @@ Previously all session names had  ~org-babel-session-~ prepended.
 *** Forward/backward paragraph functions in line with the rest of Emacs
 
 ~org-forward-paragraph~ and ~org-backward-paragraph~, bound to
-~<C-UP>~ and ~<C-DOWN>~ functions mimic more closely behaviour of
+~<C-UP>~ and ~<C-DOWN>~ functions mimic more closely behavior of
 ~forward-paragraph~ and ~backward-paragraph~ functions when
 available.
 
diff --git a/etc/themes/modus-themes.el b/etc/themes/modus-themes.el
index f49a809e491..7a4809c6eb2 100644
--- a/etc/themes/modus-themes.el
+++ b/etc/themes/modus-themes.el
@@ -7045,7 +7045,7 @@ by virtue of calling either of `modus-themes-load-operandi' and
                                          blue-alt-other))))
 ;;;;; selectrum
     ;; NOTE 2021-02-22: The `selectrum-primary-highlight' and
-    ;; `selectrum-secondary-highlight' are deprecated upstream in favour
+    ;; `selectrum-secondary-highlight' are deprecated upstream in favor
     ;; of their selectrum-prescient counterparts.  We shall remove those
     ;; faces from the themes once we are certain that they are no longer
     ;; relevant.
diff --git a/lisp/ChangeLog.17 b/lisp/ChangeLog.17
index 6333d1dadd2..cebafe18aa0 100644
--- a/lisp/ChangeLog.17
+++ b/lisp/ChangeLog.17
@@ -825,7 +825,7 @@
 
 2015-03-10  Paul Eggert  <eggert@cs.ucla.edu>
 
-        Prefer "initialize" to "initialise"
+        Prefer "initialize"
         * progmodes/js.el (js-indent-first-init):
         Rename from js-indent-first-initialiser, to avoid worrying about
         American vs British spelling.  All uses changed.
diff --git a/lisp/ChangeLog.9 b/lisp/ChangeLog.9
index 00c81337439..a8ebe81e7d7 100644
--- a/lisp/ChangeLog.9
+++ b/lisp/ChangeLog.9
@@ -5165,7 +5165,7 @@
         * sql.el (sql-interbase): New function.
         (sql-interbase-program): New option.
         (sql-interbase-options): New option.
-        And some typos fixed: "customise" to "customize".
+        And some typos fixed: "customize".
 
 2001-03-06  Dave Love  <fx@gnu.org>
 
diff --git a/lisp/elec-pair.el b/lisp/elec-pair.el
index bbed955a393..f68b2f73c0a 100644
--- a/lisp/elec-pair.el
+++ b/lisp/elec-pair.el
@@ -575,7 +575,7 @@ The decision is taken by order of preference:
          (save-excursion (electric-pair--insert pair))))))))
 
 (defun electric-pair-open-newline-between-pairs-psif ()
-  "Honour `electric-pair-open-newline-between-pairs'.
+  "Honor `electric-pair-open-newline-between-pairs'.
 Member of `post-self-insert-hook' if `electric-pair-mode' is on."
   (when (and (if (functionp electric-pair-open-newline-between-pairs)
                  (funcall electric-pair-open-newline-between-pairs)
diff --git a/lisp/emacs-lisp/byte-opt.el b/lisp/emacs-lisp/byte-opt.el
index 5f83a217061..7159c22dfae 100644
--- a/lisp/emacs-lisp/byte-opt.el
+++ b/lisp/emacs-lisp/byte-opt.el
@@ -289,7 +289,7 @@ Earlier variables shadow later ones with the same name.")
        (if (eq fn localfn)
            ;; From the same file => same mode.
            (macroexp--unfold-lambda `(,fn ,@(cdr form)))
-         ;; Since we are called from inside the optimiser, we need to make
+         ;; Since we are called from inside the optimizer, we need to make
          ;; sure not to propagate lexvar values.
          (let ((byte-optimize--lexvars nil)
                ;; Silence all compilation warnings: the useful ones should
@@ -322,7 +322,7 @@ Same format as `byte-optimize--lexvars', with shared structure and contents.")
 This indicates the loop discovery phase.")
 
 (defvar byte-optimize--dynamic-vars nil
-  "List of variables declared as dynamic during optimisation.")
+  "List of variables declared as dynamic during optimization.")
 
 (defvar byte-optimize--aliased-vars nil
   "List of variables which may be aliased by other lexical variables.
@@ -429,7 +429,7 @@ for speeding up processing.")
       (`(cond . ,clauses)
        ;; FIXME: The condition in the first clause is always executed, and
        ;; clause bodies are mutually exclusive -- use this for improved
-       ;; optimisation (see comment about `if' below).
+       ;; optimization (see comment about `if' below).
        (cons fn
              (mapcar (lambda (clause)
                        (if (consp clause)
@@ -477,9 +477,9 @@ for speeding up processing.")
        ;; FIXME: We have to traverse the expressions in left-to-right
        ;; order (because that is the order of evaluation and variable
        ;; mutations must be found prior to their use), but doing so we miss
-       ;; some optimisation opportunities:
+       ;; some optimization opportunities:
        ;; consider (and A B) in a for-effect context, where B => nil.
-       ;; Then A could be optimised in a for-effect context too.
+       ;; Then A could be optimized in a for-effect context too.
        (let ((tail exps)
              (args nil))
          (while tail
@@ -493,19 +493,19 @@ for speeding up processing.")
        ;; FIXME: If the loop condition is statically nil after substitution
        ;; of surrounding variables then we can eliminate the whole loop,
        ;; even if those variables are mutated inside the loop.
-       ;; We currently don't perform this important optimisation.
+       ;; We currently don't perform this important optimization.
        (let* ((byte-optimize--vars-outside-loop byte-optimize--lexvars)
               (condition-body
                (if byte-optimize--inhibit-outside-loop-constprop
                    ;; We are already inside the discovery phase of an outer
                    ;; loop so there is no need for traversing this loop twice.
                    (cons exp exps)
-                 ;; Discovery phase: run optimisation without substitution
+                 ;; Discovery phase: run optimization without substitution
                  ;; of variables bound outside this loop.
                  (let ((byte-optimize--inhibit-outside-loop-constprop t))
                    (cons (byte-optimize-form exp nil)
                          (byte-optimize-body exps t)))))
-              ;; Optimise again, this time with constprop enabled (unless
+              ;; Optimize again, this time with constprop enabled (unless
               ;; we are in discovery of an outer loop),
               ;; as mutated variables have been marked as non-substitutable.
               (condition (byte-optimize-form (car condition-body) nil))
@@ -559,7 +559,7 @@ for speeding up processing.")
       ;; Needed as long as we run byte-optimize-form after cconv.
       (`(internal-make-closure . ,_)
        ;; Look up free vars and mark them to be kept, so that they
-       ;; won't be optimised away.
+       ;; won't be optimized away.
        (dolist (var (caddr form))
          (let ((lexvar (assq var byte-optimize--lexvars)))
            (when lexvar
@@ -643,7 +643,7 @@ for speeding up processing.")
 
 (defun byte-optimize-one-form (form &optional for-effect)
   "The source-level pass of the optimizer."
-  ;; Make optimiser aware of lexical arguments.
+  ;; Make optimizer aware of lexical arguments.
   (let ((byte-optimize--lexvars
          (mapcar (lambda (v) (list (car v) t))
                  byte-compile--lexical-environment)))
@@ -655,7 +655,7 @@ for speeding up processing.")
         ;; First, optimize all sub-forms of this one.
         (setq form (byte-optimize-form-code-walker form for-effect))
 
-        ;; If a form-specific optimiser is available, run it and start over
+        ;; If a form-specific optimizer is available, run it and start over
         ;; until a fixpoint has been reached.
         (and (consp form)
              (symbolp (car form))
diff --git a/lisp/emacs-lisp/eldoc.el b/lisp/emacs-lisp/eldoc.el
index 5300b0594d2..82db264ce8a 100644
--- a/lisp/emacs-lisp/eldoc.el
+++ b/lisp/emacs-lisp/eldoc.el
@@ -794,7 +794,7 @@ function passes responsibility to the functions in
 Other third-party values of `eldoc-documentation-strategy' should
 not use `eldoc--make-callback'.  They must find some alternate
 way to produce callbacks to feed to
-`eldoc-documentation-functions' and should endeavour to display
+`eldoc-documentation-functions' and should endeavor to display
 the docstrings eventually produced, using
 `eldoc-display-functions'."
   (let* (;; How many callbacks have been created by the strategy
diff --git a/lisp/faces.el b/lisp/faces.el
index e93d8c7af85..59287ffbbd1 100644
--- a/lisp/faces.el
+++ b/lisp/faces.el
@@ -1847,7 +1847,7 @@ This value was determined experimentally.")
   "Whether RGB is more readable against white than black.
 RGB is a 3-element list (R G B), each component in the range [0,1].
 This predicate can be used both for determining a suitable (black or white)
-contrast colour with RGB as background and as foreground."
+contrast color with RGB as background and as foreground."
   (unless (<= 0 (apply #'min rgb) (apply #'max rgb) 1)
     (error "RGB components %S not in [0,1]" rgb))
   ;; Compute the relative luminance after gamma-correcting (assuming sRGB),
diff --git a/lisp/gnus/ChangeLog.3 b/lisp/gnus/ChangeLog.3
index c75f5354ca8..f3324b29190 100644
--- a/lisp/gnus/ChangeLog.3
+++ b/lisp/gnus/ChangeLog.3
@@ -7385,7 +7385,7 @@
 2011-01-02  Lars Magne Ingebrigtsen  <larsi@gnus.org>
 
         * gnus-sum.el (gnus-select-newsgroup): Don't propagate marks to
-        backends after sanitising on entry, because this never makes sense:
+        backends after sanitizing on entry, because this never makes sense:
         If the articles have gone missing, then the data no longer exists on
         the backend, and if they haven't, then Gnus is wrong, and shouldn't
         overwrite anything anyway.
diff --git a/lisp/icomplete.el b/lisp/icomplete.el
index 96172574709..6442cdb60f7 100644
--- a/lisp/icomplete.el
+++ b/lisp/icomplete.el
@@ -369,7 +369,7 @@ require user confirmation."
 (defun icomplete-fido-exit (force)
   "Attempt to exit minibuffer immediately with current input.
 Unless FORCE is non-nil (interactively with a prefix argument),
-honour a non-nil REQUIRE-MATCH argument to `completing-read' by
+honor a non-nil REQUIRE-MATCH argument to `completing-read' by
 trying to complete as much as possible and disallowing the exit
 if that doesn't produce a completion match."
   (interactive "P")
diff --git a/lisp/net/shr.el b/lisp/net/shr.el
index e8b0fbc18c4..cb75d91c566 100644
--- a/lisp/net/shr.el
+++ b/lisp/net/shr.el
@@ -820,7 +820,7 @@ size, and full-buffer size."
             (let* ((props (copy-sequence (text-properties-at (point))))
                    (face (plist-get props 'face)))
               ;; We don't want to use the faces on the indentation, because
-              ;; that's ugly, but we do want to use the background colour.
+              ;; that's ugly, but we do want to use the background color.
               (when face
                 (setq props (plist-put props 'face (shr-face-background face))))
               (add-text-properties gap-start (point) props))))
diff --git a/lisp/net/tramp.el b/lisp/net/tramp.el
index b8855591f80..b224435b3d6 100644
--- a/lisp/net/tramp.el
+++ b/lisp/net/tramp.el
@@ -612,7 +612,7 @@ This regexp must match both `tramp-initial-end-of-output' and
   "Regexp matching password-like prompts.
 The regexp should match at end of buffer.
 
-This variable is, by default, initialised from
+This variable is, by default, initialized from
 `password-word-equivalents' when Tramp is loaded, and it is
 usually more convenient to add new passphrases to that variable
 instead of altering this variable.
diff --git a/lisp/org/ChangeLog.1 b/lisp/org/ChangeLog.1
index 7e08d1a3c9a..836e1430dfe 100644
--- a/lisp/org/ChangeLog.1
+++ b/lisp/org/ChangeLog.1
@@ -4001,7 +4001,7 @@
         buffer.
         (org-agenda-ignore-drawer-properties): New option.
         (org-agenda-prepare-buffers):
-        Honour `org-agenda-ignore-drawer-properties'.
+        Honor `org-agenda-ignore-drawer-properties'.
 
         * org-clock.el (org-clock-goto): Recenter to thrd line
 
@@ -4134,7 +4134,7 @@
         (orgstruct-heading-prefix-regexp, orgstruct-setup-hook):
         New options.
         (orgstruct-initialized): New variable.
-        (org-get-local-variables): Honour state property.
+        (org-get-local-variables): Honor state property.
         (org-run-like-in-org-mode): Use `let' instead of `progv'.  Do not
         override variables with non-default values.
         (org-forward-heading-same-level): Do not skip to headlines on
diff --git a/lisp/progmodes/bug-reference.el b/lisp/progmodes/bug-reference.el
index 0a2d5ed796b..cbf6709792f 100644
--- a/lisp/progmodes/bug-reference.el
+++ b/lisp/progmodes/bug-reference.el
@@ -142,7 +142,7 @@ to the highlighted and clickable region."
                  t)))
         ;; All groups 2..10 are within bounds.
         (cons m-b1 m-e1)
-      ;; The regexp doesn't fulfil the contract of
+      ;; The regexp doesn't fulfill the contract of
       ;; bug-reference-bug-regexp, so fall back to the old behavior.
       (unless (member bug-reference-bug-regexp
                       bug-reference--nonconforming-regexps)
diff --git a/lisp/progmodes/flymake.el b/lisp/progmodes/flymake.el
index 83d7bc8641c..1e9f3e1f9bb 100644
--- a/lisp/progmodes/flymake.el
+++ b/lisp/progmodes/flymake.el
@@ -1664,9 +1664,9 @@ the file they refer to is visited and `flymake-mode' is turned on
 in the resulting buffer.
 
 Flymake backends that somehow gain sporadic information about
-diagnostics in neighbouring files may freely modify this variable
+diagnostics in neighboring files may freely modify this variable
 by adding or removing entries to for those files.  If the
-information about those neighbouring files is acquired repeatedly
+information about those neighboring files is acquired repeatedly
 and reliably, it may be more sensible to report them as
 \"foreign\" diagnostics instead.
 
diff --git a/lisp/progmodes/gdb-mi.el b/lisp/progmodes/gdb-mi.el
index a1385b0dea8..823d9297403 100644
--- a/lisp/progmodes/gdb-mi.el
+++ b/lisp/progmodes/gdb-mi.el
@@ -2809,7 +2809,7 @@ END-CHAR is the ending delimiter; will stop at end-of-buffer otherwise."
               pieces)
         (forward-char))
        (t
-        (warn "Unrecognised escape char: %c" (following-char))))
+        (warn "Unrecognized escape char: %c" (following-char))))
       (setq start (point)))
     (push (buffer-substring start (1- (point))) pieces)
     (let ((s (apply #'concat (nreverse pieces))))
diff --git a/lisp/ses.el b/lisp/ses.el
index 542fb3d7c87..c2c1efe0f93 100644
--- a/lisp/ses.el
+++ b/lisp/ses.el
@@ -3782,7 +3782,7 @@ function is redefined."
          (default (and cur-printer (ses--locprn-def cur-printer)))
          create-printer)
     (cond
-     ;; cancelled operation => do nothing
+     ;; canceled operation => do nothing
      ((eq definition t))
      ;; no change => do nothing
      ((and cur-printer (equal definition default)))
diff --git a/lisp/so-long.el b/lisp/so-long.el
index 17af532249c..8611081c0f4 100644
--- a/lisp/so-long.el
+++ b/lisp/so-long.el
@@ -38,7 +38,7 @@
 ;; compacted into the smallest file size possible, which often entails removing
 ;; newlines should they not be strictly necessary).  This can result in lines
 ;; which are many thousands of characters long, and most programming modes
-;; simply aren't optimised (remotely) for this scenario, so performance can
+;; simply aren't optimized (remotely) for this scenario, so performance can
 ;; suffer significantly.
 ;;
 ;; When so-long detects such a file, it calls the command `so-long', which
@@ -412,7 +412,7 @@
 ;;
 ;; 1.1.2 - Use `so-long-mode-line-active' face on `mode-name' in `so-long-mode'.
 ;; 1.1.1 - Identical to 1.1, but fixing an incorrect GNU ELPA release.
-;; 1.1   - Utilise `buffer-line-statistics' in Emacs 28+, with the new
+;; 1.1   - Utilize `buffer-line-statistics' in Emacs 28+, with the new
 ;;         `so-long-predicate' function `so-long-statistics-excessive-p'.
 ;;       - Increase `so-long-threshold' from 250 to 10,000.
 ;;       - Increase `so-long-max-lines' from 5 to 500.
@@ -449,7 +449,7 @@
 ;;       - Added sgml-mode and nxml-mode to `so-long-target-modes'.
 ;; 0.7.4 - Refactored the handling of `whitespace-mode'.
 ;; 0.7.3 - Added customization group `so-long' with user options.
-;;       - Added `so-long-original-values' to generalise the storage and
+;;       - Added `so-long-original-values' to generalize the storage and
 ;;         restoration of values from the original mode upon `so-long-revert'.
 ;;       - Added `so-long-revert-hook'.
 ;; 0.7.2 - Remember the original major mode even with M-x `so-long-mode'.
@@ -642,7 +642,7 @@ Note that `so-long-statistics-excessive-p' requires Emacs 28.1 or later."
 (defun so-long--action-type ()
   "Generate a :type for `so-long-action' based on `so-long-action-alist'."
   ;; :type seemingly cannot be a form to be evaluated on demand, so we
-  ;; endeavour to keep it up-to-date with `so-long-action-alist' by
+  ;; endeavor to keep it up-to-date with `so-long-action-alist' by
   ;; calling this from `so-long--action-alist-setter'.
   `(radio ,@(mapcar (lambda (x) (list 'const :tag (cadr x) (car x)))
                     (assq-delete-all nil so-long-action-alist))
diff --git a/lisp/windmove.el b/lisp/windmove.el
index 6c239dcd1ba..5c7bc91192a 100644
--- a/lisp/windmove.el
+++ b/lisp/windmove.el
@@ -787,7 +787,7 @@ Default value of MODIFIERS is `shift-super'."
                       (const :tag "Hyper" hyper)
                       (const :tag "Super" super)
                       (const :tag "Alt" alt))))
-  "Customisation type for windmove modifiers.")
+  "Customization type for windmove modifiers.")
 
 (defcustom windmove-default-keybindings nil
   "Default keybindings for regular windmove commands.
diff --git a/src/xfaces.c b/src/xfaces.c
index 22bd5a81b5b..14555b4f18a 100644
--- a/src/xfaces.c
+++ b/src/xfaces.c
@@ -928,7 +928,7 @@ DEFUN ("color-values-from-color-spec",
        Scolor_values_from_color_spec,
        1, 1, 0,
        doc: /* Parse color SPEC as a numeric color and return (RED GREEN BLUE).
-This function recognises the following formats for SPEC:
+This function recognizes the following formats for SPEC:
 
  #RGB, where R, G and B are hex numbers of equal length, 1-4 digits each.
  rgb:R/G/B, where R, G, and B are hex numbers, 1-4 digits each.
diff --git a/test/ChangeLog.1 b/test/ChangeLog.1
index fe7e6626cbf..328609038a7 100644
--- a/test/ChangeLog.1
+++ b/test/ChangeLog.1
@@ -65,7 +65,7 @@
 
 2015-03-10  Paul Eggert  <eggert@cs.ucla.edu>
 
-        Prefer "initialize" to "initialise"
+        Prefer "initialize"
         * indent/js-indent-init-t.js: Rename from
         indent/js-indent-first-initialiser-t.js.
         * indent/js-indent-init-dynamic.js: Rename from
diff --git a/test/lisp/calc/calc-tests.el b/test/lisp/calc/calc-tests.el
index 5f9e02f774d..abedbb9712a 100644
--- a/test/lisp/calc/calc-tests.el
+++ b/test/lisp/calc/calc-tests.el
@@ -445,7 +445,7 @@ An existing calc stack is reused, otherwise a new one is created."
        (t  ; n<k<0
         0))))
    ((natnump k)
-    ;; Generalisation for any n, integral k≥0: use falling product
+    ;; Generalization for any n, integral k≥0: use falling product
     (/ (apply '* (number-sequence n (- n (1- k)) -1))
        (calc-tests--fac k)))
    (t (error "Case not covered"))))
diff --git a/test/lisp/emacs-lisp/bytecomp-tests.el b/test/lisp/emacs-lisp/bytecomp-tests.el
index 8a09c545914..a97473e7de4 100644
--- a/test/lisp/emacs-lisp/bytecomp-tests.el
+++ b/test/lisp/emacs-lisp/bytecomp-tests.el
@@ -38,7 +38,7 @@
   bytecomp-test-var)
 
 (defun bytecomp-test-identity (x)
-  "Identity, but hidden from some optimisations."
+  "Identity, but hidden from some optimizations."
   x)
 
 (defmacro bytecomp-test-loop (outer1 outer2 inner1 inner2)
@@ -556,7 +556,7 @@ inner loops respectively."
                               ((not x) 3)))
             '("a" "b" "c" "d" nil))
 
-    ;; `let' and `let*' optimisations with body being constant or variable
+    ;; `let' and `let*' optimizations with body being constant or variable
     (let* (a
            (b (progn (setq a (cons 1 a)) 2))
            (c (1+ b))
@@ -582,7 +582,7 @@ inner loops respectively."
     (let* (x y)
       'a)
 
-    ;; Check empty-list optimisations.
+    ;; Check empty-list optimizations.
     (mapcar (lambda (x) (member x nil)) '("a" 2 nil))
     (mapcar (lambda (x) (memql x nil)) '(a 2 nil))
     (mapcar (lambda (x) (memq x nil)) '(a nil))
@@ -597,7 +597,7 @@ inner loops respectively."
       (list (mapcar (lambda (x) (assoc (setq n (1+ n)) nil)) '(a "nil"))
             n))
 
-    ;; Exercise variable-aliasing optimisations.
+    ;; Exercise variable-aliasing optimizations.
     (let ((a (list 1)))
       (let ((b a))
         (let ((a (list 2)))
diff --git a/test/lisp/so-long-tests/spelling-tests.el b/test/lisp/so-long-tests/spelling-tests.el
index eb1014dd8a7..14136cd4607 100644
--- a/test/lisp/so-long-tests/spelling-tests.el
+++ b/test/lisp/so-long-tests/spelling-tests.el
@@ -57,7 +57,7 @@
             (unwind-protect
                 (cl-letf (((symbol-function 'ispell-command-loop)
                            (lambda (_miss _guess word _start _end)
-                             (message "Unrecognised word: %s." word)
+                             (message "Unrecognized word: %s." word)
                              (throw 'mistake t))))
                   (catch 'mistake
                     (find-library "so-long")