Spelling fixes.

69 files changed, 125 insertions, 137 deletions

diff --git a/doc/lispintro/emacs-lisp-intro.texi b/doc/lispintro/emacs-lisp-intro.texi
index 841bf8a0c95..db431df3137 100644
--- a/doc/lispintro/emacs-lisp-intro.texi
+++ b/doc/lispintro/emacs-lisp-intro.texi
@@ -8200,7 +8200,7 @@ The command \\[yank] can retrieve it from there. @dots{} "
      ;;    it will be set in an error
      (setq this-command 'kill-region)
      ;;    Finally, in the then-part, send a message if you may copy
-     ;;    the text to the kill ring without signally an error, but
+     ;;    the text to the kill ring without signaling an error, but
      ;;    don't if you may not.
 @end group
 @group
diff --git a/doc/misc/ada-mode.texi b/doc/misc/ada-mode.texi
index 66cdb200111..1f4f1d5d05d 100644
--- a/doc/misc/ada-mode.texi
+++ b/doc/misc/ada-mode.texi
@@ -209,7 +209,7 @@ whose extension is @file{.ads}, it will take the first available file
 that ends with either @file{.adb}, @file{_b.ada} or
 @file{.body}.
 
-Simililarly, if Ada mode is looking for a spec, it will look for
+Similarly, if Ada mode is looking for a spec, it will look for
 @file{.ads} or @file{_s.ada}.
 
 If the filename is not derived from the Ada name following the GNAT
diff --git a/doc/misc/ert.texi b/doc/misc/ert.texi
index d802e4259f5..00755262075 100644
--- a/doc/misc/ert.texi
+++ b/doc/misc/ert.texi
@@ -389,7 +389,7 @@ This checks that dividing one by zero signals an error of type
 @code{arith-error}.  The @code{:type} argument to @code{should-error}
 is optional; if absent, any type of error is accepted.
 @code{should-error} returns an error description of the error that was
-signalled, to allow additional checks to be made.  The error
+signaled, to allow additional checks to be made.  The error
 description has the format @code{(ERROR-SYMBOL . DATA)}.
 
 There is no @code{should-not-error} macro since tests that signal an
diff --git a/doc/misc/sem-user.texi b/doc/misc/sem-user.texi
index b17f1ab7e93..463276f9fd0 100644
--- a/doc/misc/sem-user.texi
+++ b/doc/misc/sem-user.texi
@@ -608,7 +608,7 @@ of parsing.  The default is @code{t}.
 @node Debugging Idle Time Issues
 @subsection Debugging Idle Time Issues
 
-If you see an error signalled during idle time, it could be an
+If you see an error signaled during idle time, it could be an
 indication of a more serious issue elsewhere.  It is not enough to
 enable @code{debug-on-error}, because the idle scheduler inhibits the
 debugger.  Instead, use the following commands to debug the error:
diff --git a/etc/JOKES b/etc/JOKES
index 9cbba845111..af304e778da 100644
--- a/etc/JOKES
+++ b/etc/JOKES
@@ -197,7 +197,7 @@ Each
 Manual's
 Audience is
 Completely
-Stupified
+Stupefied
 
 Emacs
 Means
@@ -333,7 +333,7 @@ Easily
 Mangles,
 Aborts,
 Crashes and
-Stupifies
+Stupefies
 
 Extraneous
 Macros
diff --git a/etc/NEWS b/etc/NEWS
index 59fab6d9107..b9e65a8b7d3 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -172,7 +172,7 @@ server should listen.
 *** New emacsclient argument --frame-parameters can be used to set the
 frame parameters of a newly-created graphical frame.
 +++
-*** If emacsclient shuts down as a result of Emacs signalling an
+*** If emacsclient shuts down as a result of Emacs signaling an
 error, its exit status is 1.
 +++
 *** New emacsclient argument --parent-id ID.
@@ -1243,7 +1243,7 @@ argument is supplied (see Trash changes, above).
 
 ** `facemenu-read-color' is now an alias for `read-color'.
 The command `read-color' now requires a match for a color name or RGB
-triplet, instead of signalling an error if the user provides a invalid
+triplet, instead of signaling an error if the user provides a invalid
 input.
 
 ** Tool-bars can display separators.
diff --git a/etc/NEWS.23 b/etc/NEWS.23
index 5b170231bbd..182a8a4a008 100644
--- a/etc/NEWS.23
+++ b/etc/NEWS.23
@@ -1182,7 +1182,7 @@ run processes remotely.
 matches a regexp.
 
 *** The value of comment-style now defaults to `indent'.
-Thefore, comment-start markers are inserted at the current indentation
+Therefore, comment-start markers are inserted at the current indentation
 of the region to comment, rather than the leftmost column.
 
 *** The new commands `pp-macroexpand-expression' and
@@ -2529,4 +2529,3 @@ Local variables:
 mode: outline
 paragraph-separate: "[  ]*$"
 end:
-
diff --git a/etc/TODO b/etc/TODO
index c38b04a681d..3a35e6f4f84 100644
--- a/etc/TODO
+++ b/etc/TODO
@@ -165,7 +165,7 @@ Change them to use report-emacs-bug.
 like make-backup-file-name-function for non-numeric backup files.
 
 ** `dired-mode' should specify the semantics of `buffer-modified-p' for
-dired buffers and DTRT WRT `auto-revert-mode'. 
+dired buffers and DTRT WRT `auto-revert-mode'.
 
 ** Check uses of prin1 for error-handling.
 http://lists.gnu.org/archive/html/emacs-devel/2008-08/msg00456.html
@@ -1043,7 +1043,7 @@ was an error in the namespace URI.
 
 **** Better recovery from ill-formed XML declarations.
 
-*** Useability improvements
+*** Usability improvements
 
 **** Should print a "Parsing..." message during long movements.
 
@@ -1243,4 +1243,3 @@ GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
diff --git a/lib-src/emacsclient.c b/lib-src/emacsclient.c
index 76aa21884de..56e17c100be 100644
--- a/lib-src/emacsclient.c
+++ b/lib-src/emacsclient.c
@@ -1193,7 +1193,7 @@ handle_sigtstp (int signalnum)
     send_to_emacs (emacs_socket, "-suspend \n");
 
   /* Unblock this signal and call the default handler by temporarily
-     changing the handler and resignalling. */
+     changing the handler and resignaling.  */
   sigprocmask (SIG_BLOCK, NULL, &set);
   sigdelset (&set, signalnum);
   signal (signalnum, SIG_DFL);
diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 37b13a7acd8..b84a7b9ded7 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -3876,7 +3876,7 @@
         for list)" (bug#6475).
 
         * files.el (file-expand-wildcards): Ignore non-readable
-        sub-directories while trying to find matches instead of signalling
+        sub-directories while trying to find matches instead of signaling
         an error (bug#6297).
 
         * man.el (Man-reference-regexp): Allow matching possible
diff --git a/lisp/ChangeLog.1 b/lisp/ChangeLog.1
index f1c931589d1..aac6e998a88 100644
--- a/lisp/ChangeLog.1
+++ b/lisp/ChangeLog.1
@@ -1947,7 +1947,7 @@
         elements of command-history are expressions.
 
         * simple.el (error):
-        Just keep signalling if user tries to continue.
+        Just keep signaling if user tries to continue.
 
 1985-09-07  Richard M. Stallman  (rms@mit-prep)
 
diff --git a/lisp/ChangeLog.10 b/lisp/ChangeLog.10
index a1cba0a9cd9..e0846012697 100644
--- a/lisp/ChangeLog.10
+++ b/lisp/ChangeLog.10
@@ -3516,7 +3516,7 @@
 2003-04-23  Stefan Monnier  <monnier@cs.yale.edu>
 
         * newcomment.el (comment-normalize-vars): Prompt the user for
-        the comment-start to use rather than signalling an error.  Fix regexp.
+        the comment-start to use rather than signaling an error.  Fix regexp.
         (uncomment-region): Don't leave half-removed comment markers.
 
 2003-04-23  Richard M. Stallman  <rms@gnu.org>
diff --git a/lisp/ChangeLog.12 b/lisp/ChangeLog.12
index 1e7ed845b49..2cb3d27d694 100644
--- a/lisp/ChangeLog.12
+++ b/lisp/ChangeLog.12
@@ -7561,7 +7561,7 @@
         * pcvs-util.el (cvs-get-buffer-create): Obey `noreuse' even if `name'
         doesn't look like a file name.
 
-        * complete.el (PC-expand-many-files): Avoid signalling an error when
+        * complete.el (PC-expand-many-files): Avoid signaling an error when
         the current directory doesn't exist.  Reported by Michaël Cadilhac.
 
 2006-08-02  Andreas Schwab  <schwab@suse.de>
@@ -33362,4 +33362,3 @@ See ChangeLog.11 for earlier changes.
 
   You should have received a copy of the GNU General Public License
   along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
diff --git a/lisp/ChangeLog.13 b/lisp/ChangeLog.13
index 993c51163cb..d1cc345e158 100644
--- a/lisp/ChangeLog.13
+++ b/lisp/ChangeLog.13
@@ -1673,7 +1673,7 @@
         x-resolve-font-name.
         (x-complement-fontset-spec): Never prepend an ASCII font.
         (create-fontset-from-fontset-spec): If a fontset of the same name
-        already exists, override it instead of signalling an error.  Don't
+        already exists, override it instead of signaling an error.  Don't
         turn `ascii' into `latin'.  Don't update fontset-alias-alist here.
 
         * international/mule-conf.el (unicode-bmp): Delete duplicated
diff --git a/lisp/ChangeLog.14 b/lisp/ChangeLog.14
index c30f0e749ce..e904c1f64b9 100644
--- a/lisp/ChangeLog.14
+++ b/lisp/ChangeLog.14
@@ -7913,7 +7913,7 @@
         ignored while matching, replace the entire filename with completion.
 
         * textmodes/flyspell.el (flyspell-check-pre-word-p): Make sure
-        flyspell-pre-point is valid to avoid signalling an error in
+        flyspell-pre-point is valid to avoid signaling an error in
         post-command-hook.
 
 2008-08-26  Johan Bockgård  <bojohan@gnu.org>
@@ -20567,4 +20567,3 @@ See ChangeLog.13 for earlier changes.
 
   You should have received a copy of the GNU General Public License
   along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
diff --git a/lisp/ChangeLog.15 b/lisp/ChangeLog.15
index ed70075754c..aa9c9066dc1 100644
--- a/lisp/ChangeLog.15
+++ b/lisp/ChangeLog.15
@@ -11215,7 +11215,7 @@
         * bindings.el (complete-symbol): Move into minibuffer.el.
 
         * minibuffer.el (complete-tag): Move from etags.el.  If tags
-        completion cannot be performed, return nil instead of signalling
+        completion cannot be performed, return nil instead of signaling
         an error.
         (completion-at-point): Make it an alias for complete-symbol.
         (complete-symbol): Move from bindings.el, and replace with the
@@ -13311,7 +13311,7 @@
 
 2010-01-29  Chong Yidong  <cyd@stupidchicken.com>
 
-        * dirtrack.el (dirtrack): Warn instead of signalling error if the
+        * dirtrack.el (dirtrack): Warn instead of signaling error if the
         regexp is incorrect (Bug#5476).
 
 2010-01-29  Michael Albinus  <michael.albinus@gmx.de>
diff --git a/lisp/ChangeLog.8 b/lisp/ChangeLog.8
index ada6d98ce3d..33970b95558 100644
--- a/lisp/ChangeLog.8
+++ b/lisp/ChangeLog.8
@@ -8317,7 +8317,7 @@
 1998-11-11  Sam Steingold  <sds@goems.com>
 
         * inf-lisp.el (switch-to-lisp): If no inferior lisp present, call
-        `run-lisp' instead of signalling an error.
+        `run-lisp' instead of signaling an error.
 
 1998-11-11  Karl Heuer  <kwzh@gnu.org>
 
@@ -10009,4 +10009,3 @@ See ChangeLog.7 for earlier changes.
 
   You should have received a copy of the GNU General Public License
   along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
diff --git a/lisp/ChangeLog.9 b/lisp/ChangeLog.9
index d2d6409cdd3..d25556ce173 100644
--- a/lisp/ChangeLog.9
+++ b/lisp/ChangeLog.9
@@ -135,7 +135,7 @@
 
         * net/ange-ftp.el (ange-ftp-raw-send-cmd, ange-ftp-wait-not-busy):
         Use with-current-buffer.
-        (ange-ftp-cd): New arg `noerror' to prevent signalling an error.
+        (ange-ftp-cd): New arg `noerror' to prevent signaling an error.
         (ange-ftp-send-cmd): If a `cd' is used (because of a space in the
         filename), catch any error that occurs in `ange-ftp-cd'.
         If an error happened, don't bother sending `cmd' at all.
@@ -12638,7 +12638,7 @@
         (vc-rcs-diff): Only pass `2' to vc-do-command if necessary and
         just do a recursive call if we need to retry.
         (vc-rcs-checkout): Handle the case where rcs is missing by making
-        the buffer read-write if requested and re-signalling the error.
+        the buffer read-write if requested and re-signaling the error.
 
         * vc-cvs.el (vc-cvs-diff): Remove unused and unsupported argument CMP.
 
diff --git a/lisp/calc/calc-help.el b/lisp/calc/calc-help.el
index 427cf6ba233..66e9c002a47 100644
--- a/lisp/calc/calc-help.el
+++ b/lisp/calc/calc-help.el
@@ -683,7 +683,7 @@ C-w  Describe how there is no warranty for Calc."
   (calc-do-prefix-help
    '("Pack, Unpack, Identity, Diagonal, indeX, Build"
      "Row, Column, Subvector; Length; Find; Mask, Expand"
-     "Tranpose, Arrange, reVerse; Head, Kons; rNorm"
+     "Transpose, Arrange, reVerse; Head, Kons; rNorm"
      "SHIFT + Det, & (inverse), LUD, Trace, conJtrn, Cross"
      "SHIFT + Sort, Grade, Histogram; cNorm"
      "SHIFT + Apply, Map, Reduce, accUm, Inner-, Outer-prod"
diff --git a/lisp/calendar/icalendar.el b/lisp/calendar/icalendar.el
index 3ffd55db18d..511592d2205 100644
--- a/lisp/calendar/icalendar.el
+++ b/lisp/calendar/icalendar.el
@@ -234,7 +234,7 @@ code for the event, and your personal domain name."
   "Enable icalendar debug messages.")
 
 ;; ======================================================================
-;; NO USER SERVICABLE PARTS BELOW THIS LINE
+;; NO USER SERVICEABLE PARTS BELOW THIS LINE
 ;; ======================================================================
 
 (defconst icalendar--weekday-array ["SU" "MO" "TU" "WE" "TH" "FR" "SA"])
@@ -915,7 +915,7 @@ would be \"pm\"."
   "Export diary file to iCalendar format.
 All diary entries in the file DIARY-FILENAME are converted to iCalendar
 format.  The result is appended to the file ICAL-FILENAME."
-  (interactive "FExport diary data from file: 
+  (interactive "FExport diary data from file:
 Finto iCalendar file: ")
   (save-current-buffer
     (set-buffer (find-file diary-filename))
@@ -1557,9 +1557,9 @@ entries.  ENTRY-MAIN is the first line of the diary entry."
 
 (defun icalendar--convert-float-to-ical (nonmarker entry-main)
   "Convert float diary entry to icalendar format -- partially unsupported!
-  
+
   FIXME! DAY from diary-float yet unimplemented.
-  
+
   NONMARKER is a regular expression matching the start of non-marking
   entries.  ENTRY-MAIN is the first line of the diary entry."
   (if (string-match (concat nonmarker "%%\\((diary-float .+\\) ?$") entry-main)
@@ -1794,8 +1794,8 @@ Argument ICAL-FILENAME output iCalendar file.
 Argument DIARY-FILENAME input `diary-file'.
 Optional argument NON-MARKING determines whether events are created as
 non-marking or not."
-  (interactive "fImport iCalendar data from file: 
-Finto diary file: 
+  (interactive "fImport iCalendar data from file:
+Finto diary file:
 p")
   ;; clean up the diary file
   (save-current-buffer
diff --git a/lisp/cedet/ede/pconf.el b/lisp/cedet/ede/pconf.el
index 08fc98728e1..05290158189 100644
--- a/lisp/cedet/ede/pconf.el
+++ b/lisp/cedet/ede/pconf.el
@@ -149,7 +149,7 @@ don't do it.  A value of nil means to just do it.")
           ))))
 
 (defmethod ede-proj-configure-recreate ((this ede-proj-project))
-  "Delete project THISes configure script and start over."
+  "Delete project THIS's configure script and start over."
   (if (not (ede-proj-configure-file this))
       (error "Could not determine configure.ac for %S" (object-name this)))
   (let ((b (get-file-buffer (ede-proj-configure-file this))))
diff --git a/lisp/cedet/mode-local.el b/lisp/cedet/mode-local.el
index d077dd95f3c..52bfaab5d25 100644
--- a/lisp/cedet/mode-local.el
+++ b/lisp/cedet/mode-local.el
@@ -656,7 +656,7 @@ SYMBOL is a function that can be overridden."
      table)
     ;; Print symbols by type
     (when us
-      (princ "\n  !! Unpecified symbols\n")
+      (princ "\n  !! Unspecified symbols\n")
       (mapc 'mode-local-print-binding us))
     (when mc
       (princ "\n  ** Mode local constants\n")
diff --git a/lisp/cedet/semantic/bovine/c.el b/lisp/cedet/semantic/bovine/c.el
index af293a10348..49323d24d6a 100644
--- a/lisp/cedet/semantic/bovine/c.el
+++ b/lisp/cedet/semantic/bovine/c.el
@@ -240,7 +240,7 @@ Return the defined symbol as a special spp lex token."
                         (goto-char (match-end 0))
                         (looking-at "(")))
            (semantic-lex-spp-replacements-enabled nil)
-           ;; Temporarilly override the lexer to include
+           ;; Temporarily override the lexer to include
            ;; special items needed inside a macro
            (semantic-lex-analyzer #'semantic-cpp-lexer)
            (raw-stream
diff --git a/lisp/cedet/semantic/bovine/el.el b/lisp/cedet/semantic/bovine/el.el
index cfdd4cf6f6c..666624db929 100644
--- a/lisp/cedet/semantic/bovine/el.el
+++ b/lisp/cedet/semantic/bovine/el.el
@@ -534,9 +534,9 @@ Optional argument NOSNARF is ignored."
                      (t
                       (setq d (documentation-property
                                sym 'variable-documentation)))))
-             ;; Label it as system doc.. perhaps just for debugging
+             ;; Label it as system doc. perhaps just for debugging
              ;; purposes.
-             (if d (setq d (concat "Sytem Doc: \n" d)))
+             (if d (setq d (concat "System Doc: \n" d)))
              ))
       )
 
diff --git a/lisp/cedet/srecode/dictionary.el b/lisp/cedet/srecode/dictionary.el
index 521532bed33..272e7693ccd 100644
--- a/lisp/cedet/srecode/dictionary.el
+++ b/lisp/cedet/srecode/dictionary.el
@@ -436,7 +436,7 @@ The root dictionary is usually for a current or active insertion."
 
 ;;; COMPOUND VALUE METHODS
 ;;
-;; Compound values must provide at least the toStriong method
+;; Compound values must provide at least the toString method
 ;; for use in converting the compound value into sometehing insertable.
 
 (defmethod srecode-compound-toString ((cp srecode-dictionary-compound-value)
diff --git a/lisp/emacs-lisp/eieio-base.el b/lisp/emacs-lisp/eieio-base.el
index 139f5e6a4ce..df57148962f 100644
--- a/lisp/emacs-lisp/eieio-base.el
+++ b/lisp/emacs-lisp/eieio-base.el
@@ -54,7 +54,7 @@ not been set, use values from the parent."
 
 (defmethod slot-unbound ((object eieio-instance-inheritor) class slot-name fn)
   "If a slot OBJECT in this CLASS is unbound, try to inherit, or throw a signal.
-SLOT-NAME is the offending slot.  FN is the function signalling the error."
+SLOT-NAME is the offending slot.  FN is the function signaling the error."
   (if (slot-boundp object 'parent-instance)
       ;; It may not look like it, but this line recurses back into this
       ;; method if the parent instance's slot is unbound.
diff --git a/lisp/emacs-lisp/eieio.el b/lisp/emacs-lisp/eieio.el
index 352bd245ba4..68a3440b179 100644
--- a/lisp/emacs-lisp/eieio.el
+++ b/lisp/emacs-lisp/eieio.el
@@ -395,7 +395,7 @@ It creates an autoload function for CNAME's constructor."
           (aset newc class-parent (cons SC (aref newc class-parent)))
           )
 
-        ;; turn this into a useable self-pointing symbol
+        ;; turn this into a usable self-pointing symbol
         (set cname cname)
 
         ;; Store the new class vector definition into the symbol.  We need to
@@ -509,7 +509,7 @@ See `defclass' for more information."
         ;; save parent in child
         (aset newc class-parent (list eieio-default-superclass))))
 
-    ;; turn this into a useable self-pointing symbol
+    ;; turn this into a usable self-pointing symbol
     (set cname cname)
 
     ;; These two tests must be created right away so we can have self-
diff --git a/lisp/emacs-lisp/ert.el b/lisp/emacs-lisp/ert.el
index 2afe42dc070..8b64cd84bb1 100644
--- a/lisp/emacs-lisp/ert.el
+++ b/lisp/emacs-lisp/ert.el
@@ -248,7 +248,7 @@ Emacs bug 6581 at URL `http://debbugs.gnu.org/cgi/bugreport.cgi?bug=6581'."
     ;; We disallow nil since `ert-test-at-point' and related functions
     ;; want to return a test name, but also need an out-of-band value
     ;; on failure.  Nil is the most natural out-of-band value; using 0
-    ;; or "" or signalling an error would be too awkward.
+    ;; or "" or signaling an error would be too awkward.
     ;;
     ;; Note that nil is still a valid value for the `name' slot in
     ;; ert-test objects.  It designates an anonymous test.
@@ -448,7 +448,7 @@ arguments: INNER-FORM and FORM-DESCRIPTION-FORM, where INNER-FORM
 is an expression equivalent to FORM, and FORM-DESCRIPTION-FORM is
 an expression that returns a description of FORM.  INNER-EXPANDER
 should return code that calls INNER-FORM and performs the checks
-and error signalling specific to the particular variant of
+and error signaling specific to the particular variant of
 `should'.  The code that INNER-EXPANDER returns must not call
 FORM-DESCRIPTION-FORM before it has called INNER-FORM."
   (lexical-let ((inner-expander inner-expander))
@@ -489,17 +489,17 @@ Returns nil."
 
 Determines whether CONDITION matches TYPE and EXCLUDE-SUBTYPES,
 and aborts the current test as failed if it doesn't."
-  (let ((signalled-conditions (get (car condition) 'error-conditions))
+  (let ((signaled-conditions (get (car condition) 'error-conditions))
         (handled-conditions (etypecase type
                               (list type)
                               (symbol (list type)))))
-    (assert signalled-conditions)
-    (unless (ert--intersection signalled-conditions handled-conditions)
+    (assert signaled-conditions)
+    (unless (ert--intersection signaled-conditions handled-conditions)
       (ert-fail (append
                  (funcall form-description-fn)
                  (list
                   :condition condition
-                  :fail-reason (concat "the error signalled did not"
+                  :fail-reason (concat "the error signaled did not"
                                        " have the expected type")))))
     (when exclude-subtypes
       (unless (member (car condition) handled-conditions)
@@ -507,7 +507,7 @@ and aborts the current test as failed if it doesn't."
                    (funcall form-description-fn)
                    (list
                     :condition condition
-                    :fail-reason (concat "the error signalled was a subtype"
+                    :fail-reason (concat "the error signaled was a subtype"
                                          " of the expected type"))))))))
 
 ;; FIXME: The expansion will evaluate the keyword args (if any) in
@@ -515,7 +515,7 @@ and aborts the current test as failed if it doesn't."
 (defmacro* should-error (form &rest keys &key type exclude-subtypes)
   "Evaluate FORM and check that it signals an error.
 
-The error signalled needs to match TYPE.  TYPE should be a list
+The error signaled needs to match TYPE.  TYPE should be a list
 of condition names.  (It can also be a non-nil symbol, which is
 equivalent to a singleton list containing that symbol.)  If
 EXCLUDE-SUBTYPES is nil, the error matches TYPE if one of its
@@ -523,7 +523,7 @@ condition names is an element of TYPE.  If EXCLUDE-SUBTYPES is
 non-nil, the error matches TYPE if it is an element of TYPE.
 
 If the error matches, returns (ERROR-SYMBOL . DATA) from the
-error.  If not, or if no error was signalled, abort the test as
+error.  If not, or if no error was signaled, abort the test as
 failed."
   (unless type (setq type ''error))
   (ert--expand-should
@@ -2120,7 +2120,7 @@ To be used in the ERT results buffer."
 
 EWOC-FN specifies the direction and should be either `ewoc-prev'
 or `ewoc-next'.  If there are no more nodes in that direction, an
-error is signalled with the message ERROR-MESSAGE."
+error is signaled with the message ERROR-MESSAGE."
   (loop
    (setq node (funcall ewoc-fn ert--results-ewoc node))
    (when (null node)
diff --git a/lisp/emulation/viper-util.el b/lisp/emulation/viper-util.el
index 24a38236176..c80dd31a8f0 100644
--- a/lisp/emulation/viper-util.el
+++ b/lisp/emulation/viper-util.el
@@ -1112,7 +1112,7 @@ Otherwise return the normal value."
        lis)))
 
 
-;; Smoothes out the difference between Emacs' unread-command-events
+;; Smooths out the difference between Emacs' unread-command-events
 ;; and XEmacs unread-command-event.  Arg is a character, an event, a list of
 ;; events or a sequence of keys.
 ;;
diff --git a/lisp/erc/ChangeLog.01 b/lisp/erc/ChangeLog.01
index 4016586abc7..e189ce26e1d 100644
--- a/lisp/erc/ChangeLog.01
+++ b/lisp/erc/ChangeLog.01
@@ -160,9 +160,9 @@
 
         * debian/control: integrated erc-speak back into erc
 
-        * debian/maint/conffiles, debian/maint/conffiles.in, debian/maint/postinst, 
-          debian/maint/postinst.in, debian/maint/prerm, debian/maint/prerm.in, 
-          debian/scripts/install, debian/scripts/install.in, debian/scripts/remove, 
+        * debian/maint/conffiles, debian/maint/conffiles.in, debian/maint/postinst,
+          debian/maint/postinst.in, debian/maint/prerm, debian/maint/prerm.in,
+          debian/scripts/install, debian/scripts/install.in, debian/scripts/remove,
           debian/scripts/remove.in, debian/scripts/startup.erc-speak:
         since erc-speak is gone, resurrect the static files, and update them to support the latest erc
 
@@ -220,7 +220,7 @@
         * erc.el:
         * Applied antifuchs/mhp patches, the latest on erc-help, unmodified
         * New variable: erc-reuse-buffers default to t.
-        * Modified erc-generate-new-buffer-name to use it. it checks if server and port are the same, 
+        * Modified erc-generate-new-buffer-name to use it. it checks if server and port are the same,
           then one can assume thats the same channel/query target again.
 
 2001-11-23  Mario Lang  <mlang@delysid.org>
@@ -238,7 +238,7 @@
 
         * erc.el: * New local variable, erc-announced-server-name
         * erc-mode-line-format supports a new symbol, target-and/or-server
-        * The mode-line displays the announced server name now (for autojoin later..., 
+        * The mode-line displays the announced server name now (for autojoin later...,
           greets Adam)
         * New macro, erc-server-hook-list for a nice way to define the defcustoms of the erc-server-*-hook's
           Thanks go to the guy from #emacs who helped with that
@@ -603,11 +603,11 @@
 
         * debian/control: added the new erc-speak package
 
-        * debian/README.erc-speak, debian/maint/postinst.in, debian/maint/prerm.in, 
+        * debian/README.erc-speak, debian/maint/postinst.in, debian/maint/prerm.in,
           debian/scripts/install.in, debian/scripts/remove.in:
         new file
 
-        * debian/maint/postinst, debian/maint/prerm, debian/scripts/install, 
+        * debian/maint/postinst, debian/maint/prerm, debian/scripts/install,
           debian/scripts/remove:
         removed, superseded by its .in counterpart
 
@@ -625,7 +625,7 @@
 2001-10-23  Mario Lang  <mlang@delysid.org>
 
         * erc-speak.el:
-        * Added a new personality for channel name announcement, This makes streams of flooded channels much easier to listen to, 
+        * Added a new personality for channel name announcement, This makes streams of flooded channels much easier to listen to,
           especially if you are on more than one channel simultaneously.
 
         * erc.el:
@@ -643,7 +643,7 @@
         * Removed now really obsolete code. Package size reduced by 50%
 
         * erc-speak.el:
-        * Very important fix! Now erc-speak is really complete. Messages don't get cut anymore. Be sure to use auditory icons, 
+        * Very important fix! Now erc-speak is really complete. Messages don't get cut anymore. Be sure to use auditory icons,
           it's reallllly cool now!!!
 
         * erc-speak.el: *** empty log message ***
@@ -655,9 +655,9 @@
 
         * debian/changelog: oops, silly typo
 
-        * debian/changelog, debian/control, debian/copyright, 
-          debian/maint/conffiles, debian/maint/postinst, debian/maint/prerm, 
-          debian/rules, debian/scripts/install, debian/scripts/remove, 
+        * debian/changelog, debian/control, debian/copyright,
+          debian/maint/conffiles, debian/maint/postinst, debian/maint/prerm,
+          debian/rules, debian/scripts/install, debian/scripts/remove,
           debian/scripts/startup:
         initial check-in
 
@@ -666,7 +666,7 @@
         * erc.el:
         * Changed erc-insert-hook to get two arguments, START and END of the region
           which got inserted. CAREFUL! This could break stuff, but it makes the hook
-          much more useable.
+          much more usable.
 
         * erc.el:
         * Made erc-smiley a new option, currently set to t to showoff this feature. :)
@@ -830,7 +830,7 @@
         * Fix for custom problem with :must-match on XEmacs (thanks shapr)
         * Added /COUNTRY command using (what-domain) from package mail-extr (shapr)
         * Fix for case-sensitivity problem with pals (they are now all downcased)
-        * Different (erc-version) function which now can take prefix argument to insert the version information into the current buffer, 
+        * Different (erc-version) function which now can take prefix argument to insert the version information into the current buffer,
           instead of just displaying it in the minibuffer.
 
 2001-09-10  Mario Lang  <mlang@delysid.org>
@@ -1055,4 +1055,3 @@
 ;; Local Variables:
 ;; coding: utf-8
 ;; End:
-
diff --git a/lisp/erc/ChangeLog.03 b/lisp/erc/ChangeLog.03
index 7f82a9bcbe2..74f2ab442b9 100644
--- a/lisp/erc/ChangeLog.03
+++ b/lisp/erc/ChangeLog.03
@@ -323,7 +323,7 @@
 
         * erc.el(erc-modules): Add some more symbols to the set
 
-        * erc.el(erc-modules):  * erc.el(erc-modules): Add :greedy t to the set in 
+        * erc.el(erc-modules):  * erc.el(erc-modules): Add :greedy t to the set in
 
         * erc-dcc.el:
         More autoloads which make dcc autoload upon ctcp dcc query received.
@@ -744,7 +744,7 @@
 
 2003-04-27  Damien Elmes  <erc@repose.cx>
 
-        * erc.el:       * erc.el: erc-modules: added 
+        * erc.el:       * erc.el: erc-modules: added
 
 2003-04-27  Alex Schroeder  <alex@gnu.org>
 
@@ -1232,7 +1232,7 @@
 
 2003-01-19  Mario Lang  <mlang@delysid.org>
 
-        * debian/README.Debian, debian/changelog, debian/scripts/install, 
+        * debian/README.Debian, debian/changelog, debian/scripts/install,
           debian/scripts/startup.erc, Makefile:
         Prepare for 20030119 debian package
 
@@ -1609,7 +1609,7 @@
         POS in any case, otherwise, linewrap occurs.
 
         * erc-dcc.el:
-        * Fixed the unibyte-multibyte problem (now a dcc get buffer is (set-buffer-multibyte nil), 
+        * Fixed the unibyte-multibyte problem (now a dcc get buffer is (set-buffer-multibyte nil),
           and saves correctly (tried with 21.3.50). Thanks to Eli for suggesting it!
         * Added :start-time plist property/value to GET handling so that we can calculate elapsed-time.
         * Some (unwind-protect (progn (set-buffer ...) ...)) constructs replaced with (with-current-buffer ...)
@@ -1691,12 +1691,12 @@
 
 2003-01-11  Mario Lang  <mlang@delysid.org>
 
-        * erc-dcc.el:   * erc-dcc.el: * (erc-dcc-do-LIST-command): Fix 
+        * erc-dcc.el:   * erc-dcc.el: * (erc-dcc-do-LIST-command): Fix
 
         * erc-dcc.el:
         * buffer-local variables erc-dcc-sent-marker and erc-dcc-send-confirmed marker removed
           Keep This info in erc-dcc-member :sent and :confirmed plist values
-        * :     * :buffer plist for :type 'SEND removed, since we can get this with (marker-buffer 
+        * :     * :buffer plist for :type 'SEND removed, since we can get this with (marker-buffer
         * erc-dcc-send-connect-hook: New hook, defaults to erc-dcc-send-block and erc-dcc-send-connected, which now prints a msg...
 
         * erc-dcc.el:
@@ -1985,7 +1985,7 @@
         (erc-server-PRIVMSG-or-NOTICE): Capitalized first word in message to user.
 
         * erc.el(erc-scroll-to-bottom):
-        Temporarilly bind resize-mini-windows to nil so that
+        Temporarily bind resize-mini-windows to nil so that
             users who have it set to a non-nil value will not suffer from premature
             minibuffer shrinkage due to the below recenter call.  I have no idea why
             this works, but it solves the problem, and has no negative side effects.
@@ -2160,4 +2160,3 @@ See ChangeLog.02 for earlier changes.
 ;; Local Variables:
 ;; coding: utf-8
 ;; End:
-
diff --git a/lisp/eshell/em-hist.el b/lisp/eshell/em-hist.el
index 993e9d63a94..db5e98062a9 100644
--- a/lisp/eshell/em-hist.el
+++ b/lisp/eshell/em-hist.el
@@ -609,7 +609,7 @@ See also `eshell-read-history'."
                                            history))))
                  (setq index (1- index)))
                (let ((fhist (list t)))
-                 ;; uniqify the list, but preserve the order
+                 ;; uniquify the list, but preserve the order
                  (while history
                    (unless (member (car history) fhist)
                      (nconc fhist (list (car history))))
diff --git a/lisp/files.el b/lisp/files.el
index aac415c1a96..6cf94a89c92 100644
--- a/lisp/files.el
+++ b/lisp/files.el
@@ -2603,7 +2603,7 @@ we don't actually set it to the same mode the buffer already has."
                    (if (looking-at auto-mode-interpreter-regexp)
                        (match-string 2)
                      ""))
-            ;; Map interpreter name to a mode, signalling we're done at the
+            ;; Map interpreter name to a mode, signaling we're done at the
             ;; same time.
             done (assoc (file-name-nondirectory mode)
                         interpreter-mode-alist))
@@ -6500,7 +6500,7 @@ Otherwise, trash FILENAME using the freedesktop.org conventions,
                                  (setq tries 0 success t))
                              (file-already-exists nil))
                      (setq tries (1- tries))
-                     ;; Uniqify new-fn.  (Some file managers do not
+                     ;; Uniquify new-fn.  (Some file managers do not
                      ;; like Emacs-style backup file names---e.g. bug
                      ;; 170956 in Konqueror bug tracker.)
                      (setq new-fn (make-temp-name (concat base-fn "_")))))
diff --git a/lisp/gnus/gnus-uu.el b/lisp/gnus/gnus-uu.el
index 15c3d41bece..743b4580cff 100644
--- a/lisp/gnus/gnus-uu.el
+++ b/lisp/gnus/gnus-uu.el
@@ -41,7 +41,7 @@
   :group 'gnus)
 
 (defgroup gnus-extract-view nil
-  "Viewwing extracted files."
+  "Viewing extracted files."
   :group 'gnus-extract)
 
 (defgroup gnus-extract-archive nil
diff --git a/lisp/gnus/gnus-win.el b/lisp/gnus/gnus-win.el
index a1a8abc3086..ecd5b3b525b 100644
--- a/lisp/gnus/gnus-win.el
+++ b/lisp/gnus/gnus-win.el
@@ -54,7 +54,7 @@
   :type 'boolean)
 
 (defcustom gnus-use-frames-on-any-display nil
-  "*If non-nil, frames on all displays will be considered useable by Gnus.
+  "*If non-nil, frames on all displays will be considered usable by Gnus.
 When nil, only frames on the same display as the selected frame will be
 used to display Gnus windows."
   :version "22.1"
diff --git a/lisp/info.el b/lisp/info.el
index b8deb3c9c7f..b3bdbc5e5be 100644
--- a/lisp/info.el
+++ b/lisp/info.el
@@ -3328,7 +3328,7 @@ Return a list of matches where each element is in the format
         (Info-directory)
         ;; current-node and current-file are nil when they invoke info-apropos
         ;; as the first Info command, i.e. info-apropos loads info.el.  In that
-        ;; case, we use (DIR)Top instead, to avoid signalling an error after
+        ;; case, we use (DIR)Top instead, to avoid signaling an error after
         ;; the search is complete.
         (when (null current-node)
           (setq current-file Info-current-file)
diff --git a/lisp/language/vietnamese.el b/lisp/language/vietnamese.el
index 97d5037f3c5..e723e154dc1 100644
--- a/lisp/language/vietnamese.el
+++ b/lisp/language/vietnamese.el
@@ -28,7 +28,7 @@
 
 ;;; Commentary:
 
-;; For Vietnames, the character sets VISCII, VSCII and TCVN-5712 are
+;; For Vietnamese, the character sets VISCII, VSCII and TCVN-5712 are
 ;; supported.
 
 ;;; Code:
diff --git a/lisp/mail/rmail.el b/lisp/mail/rmail.el
index 016fde2bef4..5842f8e741f 100644
--- a/lisp/mail/rmail.el
+++ b/lisp/mail/rmail.el
@@ -2071,7 +2071,7 @@ Call with point at the end of the message."
 (defun rmail-add-mbox-headers ()
   "Validate the RFC2822 format for the new messages.
 Point should be at the first new message.
-An error is signalled if the new messages are not RFC2822
+An error is signaled if the new messages are not RFC2822
 compliant.
 Unless an Rmail attribute header already exists, add it to the
 new messages.  Return the number of new messages."
@@ -2440,7 +2440,7 @@ Output a helpful message unless NOMSG is non-nil."
         ;; the entry for message N+1, which marks
         ;; the end of message N.  (N = number of messages).
         (setq messages-head (list (point-marker)))
-        (setq messages-after-point 
+        (setq messages-after-point
               (or (rmail-set-message-counters-counter (min (point) point-save))
                   0))
 
@@ -3096,7 +3096,7 @@ but probably is garbage."
     ;; correspond to the lines in the inbox file.
     (goto-char (point-min))
     (if header-field
-        (progn 
+        (progn
           (re-search-forward (concat "^" (regexp-quote header-field)) nil t)
           (forward-line line-number-within))
       (search-forward "\n\n" nil t)
diff --git a/lisp/mail/rmailmm.el b/lisp/mail/rmailmm.el
index d3351255583..f9eaa68c85b 100644
--- a/lisp/mail/rmailmm.el
+++ b/lisp/mail/rmailmm.el
@@ -882,7 +882,7 @@ The other arguments are the same as `rmail-mime-multipart-handler'."
              ;; We're handling what's left of a truncated message.
              (setq next (point-max-marker)))
             (t
-             ;; The original code signalled an error as below, but
+             ;; The original code signaled an error as below, but
              ;; this line may be a boundary of nested multipart.  So,
              ;; we just set `next' to nil to skip this line
              ;; (rmail-mm-get-boundary-error-message
diff --git a/lisp/mpc.el b/lisp/mpc.el
index 40ccb456400..238e8ad68ae 100644
--- a/lisp/mpc.el
+++ b/lisp/mpc.el
@@ -2358,7 +2358,7 @@ This is used so that they can be compared with `eq', which is needed for
         (let* ((currenttime (float-time))
                (last-time (- currenttime (car mpc-last-seek-time))))
           (if (< last-time (* 0.9 repeat-delay))
-              nil ;; Trottle
+              nil ;; Throttle
             (let* ((status (if (< last-time 1.0)
                                mpc-status (mpc-cmd-status)))
                    (songid (cdr (assq 'songid status)))
diff --git a/lisp/net/snmp-mode.el b/lisp/net/snmp-mode.el
index e9783d46ba8..8112ed5b177 100644
--- a/lisp/net/snmp-mode.el
+++ b/lisp/net/snmp-mode.el
@@ -676,7 +676,7 @@ controls whether case is significant."
 ;; v2 SMI TEXTUAL-CONVENTION macro template
 ;;
 (tempo-define-template "snmpv2-textual-convention"
-  '(> (P "Texual Convention Type: ") " ::= TEXTUAL-CONVENTION" n>
+  '(> (P "Textual Convention Type: ") " ::= TEXTUAL-CONVENTION" n>
     "STATUS  "
     (if tempo-interactive
         (snmp-completing-read "Status: " snmp-mode-status-list nil t)
diff --git a/lisp/net/soap-client.el b/lisp/net/soap-client.el
index d6949e4d250..74f51d148ef 100644
--- a/lisp/net/soap-client.el
+++ b/lisp/net/soap-client.el
@@ -373,7 +373,7 @@ binding) but the same name."
 
 (defstruct (soap-sequence-type (:include soap-element))
   parent                                ; OPTIONAL WSDL-TYPE name
-  elements                              ; LIST of SOAP-SEQUCENCE-ELEMENT
+  elements                              ; LIST of SOAP-SEQUENCE-ELEMENT
   )
 
 (defstruct (soap-array-type (:include soap-element))
diff --git a/lisp/net/xesam.el b/lisp/net/xesam.el
index 56e9cb68c61..efb2cdd6166 100644
--- a/lisp/net/xesam.el
+++ b/lisp/net/xesam.el
@@ -409,7 +409,7 @@ If there is no registered search engine at all, the function returns `nil'."
         (setq vendor-id (xesam-get-property engine "vendor.id")
               hit-fields (xesam-get-property engine "hit.fields"))
 
-        ;; Ususally, `hit.fields' shall describe supported fields.
+        ;; Usually, `hit.fields' shall describe supported fields.
         ;; That is not the case now, so we set it ourselves.
         ;; Hopefully, this will change later.
         (setq hit-fields
diff --git a/lisp/net/zeroconf.el b/lisp/net/zeroconf.el
index d801a4c094c..9060e091587 100644
--- a/lisp/net/zeroconf.el
+++ b/lisp/net/zeroconf.el
@@ -486,7 +486,7 @@ TYPE. The resulting list has the format
   (nth 9 (zeroconf-resolve-service service)))
 
 
-;;; Services signalling.
+;;; Services signaling.
 
 ;; Register for the service type browser.  Service registrations will
 ;; happen in `zeroconf-service-type-browser-handler', when there is an
diff --git a/lisp/org/ChangeLog b/lisp/org/ChangeLog
index f6bd1ffa2d4..704da5fa68e 100644
--- a/lisp/org/ChangeLog
+++ b/lisp/org/ChangeLog
@@ -5020,7 +5020,7 @@
         with code implementing the writing of graohical output to file.
         (org-babel-execute:R): Use `org-babel-R-graphical-output-file' to
         determine whether R is taking responsibility for writing output to
-        file; if so, this is signalled to ob.el by returning a nil result.
+        file; if so, this is signaled to ob.el by returning a nil result.
 
 2011-07-28  Dan Davison  <dandavison7@gmail.com>
 
@@ -18037,4 +18037,3 @@
 
   You should have received a copy of the GNU General Public License
   along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
diff --git a/lisp/org/org-list.el b/lisp/org/org-list.el
index 866176e4e8f..2fe512329ca 100644
--- a/lisp/org/org-list.el
+++ b/lisp/org/org-list.el
@@ -2642,7 +2642,7 @@ If a region is active, all items inside will be moved."
 (defvar org-tab-ind-state)
 (defun org-cycle-item-indentation ()
   "Cycle levels of indentation of an empty item.
-The first run indents the item, if applicable.  Subsequents runs
+The first run indents the item, if applicable.  Subsequent runs
 outdent it at meaningful levels in the list.  When done, item is
 put back at its original position with its original bullet.
 
diff --git a/lisp/org/org.el b/lisp/org/org.el
index da39aa189ba..10531b07325 100644
--- a/lisp/org/org.el
+++ b/lisp/org/org.el
@@ -2681,7 +2681,7 @@ When this variable is set to t, the date/time prompt will not let
 you specify dates outside the 1970-2037 range, so it is certain that
 these dates will work in whatever version of Emacs you are
 running, and also that you can move a file from one Emacs implementation
-to another.  WHenever Org is forcing the year for you, it will display
+to another.  Whenever Org is forcing the year for you, it will display
 a message and beep.
 
 When this variable is nil, Org will check if the date is
diff --git a/lisp/progmodes/cc-cmds.el b/lisp/progmodes/cc-cmds.el
index e59fdc16af7..151dbd0c76e 100644
--- a/lisp/progmodes/cc-cmds.el
+++ b/lisp/progmodes/cc-cmds.el
@@ -2969,7 +2969,7 @@ A prefix argument acts as a repeat count.  With a negative argument,
 move backward across a preprocessor conditional.
 
 If there aren't enough conditionals after \(or before) point, an
-error is signalled.
+error is signaled.
 
 \"#elif\" is treated like \"#else\" followed by \"#if\", except that
 the nesting level isn't changed when tracking subconditionals.
@@ -4094,7 +4094,7 @@ command to conveniently insert and align the necessary backslashes."
 ;                   (or (<= (- (cdr c-lit-limits) 2) (point))
 ; 2010-10-17  Construct removed.
 ;                   (or (< (- (cdr c-lit-limits) 2) (point))
-                    (and 
+                    (and
                      (search-forward-regexp
                       (concat "\\=[ \t]*\\(" c-current-comment-prefix "\\)")
                       (- (cdr c-lit-limits) 2) t)
diff --git a/lisp/progmodes/cc-defs.el b/lisp/progmodes/cc-defs.el
index 8632807f2b8..fb9fd406ef8 100644
--- a/lisp/progmodes/cc-defs.el
+++ b/lisp/progmodes/cc-defs.el
@@ -555,7 +555,7 @@ certain situations."
   `(c-forward-sexp ,(if (numberp count) (- count) `(- ,count))))
 
 (defmacro c-safe-scan-lists (from count depth &optional limit)
-  "Like `scan-lists' but returns nil instead of signalling errors
+  "Like `scan-lists' but returns nil instead of signaling errors
 for unbalanced parens.
 
 A limit for the search may be given.  FROM is assumed to be on the
@@ -760,7 +760,7 @@ be after it."
 ;; non-nil if point (or the optional parameter POS) is at a VS, nil otherwise.
 ;;
 ;; The language specific function might well do extensive analysis of the
-;; source text, and may use a cacheing scheme to speed up repeated calls.
+;; source text, and may use a caching scheme to speed up repeated calls.
 ;;
 ;; The "virtual semicolon" lies just after the last non-ws token on the line.
 ;; Like POINT, it is considered to lie between two characters.  For example,
@@ -784,7 +784,7 @@ be after it."
 ;; `c-beginning-of-statement-1'.  `c-vsemi-status-unknown-p' may not itself
 ;; call `c-beginning-of-statement-1'.
 ;;
-;; The macro `c-vsemi-status-unknown-p' will typically check the cacheing
+;; The macro `c-vsemi-status-unknown-p' will typically check the caching
 ;; scheme used by the `c-at-vsemi-p-fn', hence the name - the status is
 ;; "unknown" if there is no cache entry current for the line.
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
diff --git a/lisp/progmodes/gdb-mi.el b/lisp/progmodes/gdb-mi.el
index e47ba3c92f3..c88727c721c 100644
--- a/lisp/progmodes/gdb-mi.el
+++ b/lisp/progmodes/gdb-mi.el
@@ -350,7 +350,7 @@ automatically.
 
 This setting is used in non-stop mode only. In all-stop mode,
 Emacs always switches to the thread which caused the stop."
-  ;; exited, exited-normally and exited-signalled are not
+  ;; exited, exited-normally and exited-signaled are not
   ;; thread-specific stop reasons and therefore are not included in
   ;; this list
   :type '(choice
diff --git a/lisp/progmodes/idlwave.el b/lisp/progmodes/idlwave.el
index 95f67a6bf66..d3770247c60 100644
--- a/lisp/progmodes/idlwave.el
+++ b/lisp/progmodes/idlwave.el
@@ -7206,7 +7206,7 @@ If these don't exist, a letter in the string is automatically selected."
 ;;----------------------------------------------------------------------
 
 ;;; ------------------------------------------------------------------------
-;;; Stucture parsing code, and code to manage class info
+;;; Structure parsing code, and code to manage class info
 
 ;;
 ;; - Go again over the documentation how to write a completion
diff --git a/lisp/progmodes/verilog-mode.el b/lisp/progmodes/verilog-mode.el
index f7cb1318dc0..9ef7440f8da 100644
--- a/lisp/progmodes/verilog-mode.el
+++ b/lisp/progmodes/verilog-mode.el
@@ -2709,7 +2709,7 @@ either is ok to parse as a non-comment, or `verilog-insert' was used."
         (remove-text-properties (point-min) (point-max) '(v-cmt nil))
         (verilog-scan-region (point-min) (point-max))
         (setq verilog-scan-cache-tick (buffer-chars-modified-tick))
-        (when verilog-debug (message "Scaning... done"))))))
+        (when verilog-debug (message "Scanning... done"))))))
 
 (defun verilog-inside-comment-p ()
   "Check if point inside a comment.
@@ -11958,7 +11958,7 @@ Files are checked based on `verilog-library-flags'."
     (mouse-set-point event)
     (verilog-load-file-at-point t)))
 
-;; ffap isn't useable for Verilog mode. It uses library paths.
+;; ffap isn't usable for Verilog mode. It uses library paths.
 ;; so define this function to do more or less the same as ffap
 ;; but first resolve filename...
 (defun verilog-load-file-at-point (&optional warn)
diff --git a/lisp/view.el b/lisp/view.el
index ef865007332..6955fbdfad8 100644
--- a/lisp/view.el
+++ b/lisp/view.el
@@ -925,7 +925,7 @@ for highlighting the match that is found."
 
 (defun view-search (times regexp)
   ;; This function does the job for all the View-search- commands.
-  ;; Search for the TIMESt match for REGEXP.  If TIMES is negative
+  ;; Search for the TIMESth match for REGEXP.  If TIMES is negative
   ;; search backwards.  If REGEXP is nil use `view-last-regexp'.
   ;; Characters "!" and "@" have a special meaning at the beginning of
   ;; REGEXP and are removed from REGEXP before the search "!" means
diff --git a/lisp/window.el b/lisp/window.el
index 7b16d6b886f..ddb29b95856 100644
--- a/lisp/window.el
+++ b/lisp/window.el
@@ -5409,7 +5409,7 @@ by `recenter-positions'."
 ;;; of buffer).
 
 (defcustom scroll-error-top-bottom nil
-  "Move point to top/bottom of buffer before signalling a scrolling error.
+  "Move point to top/bottom of buffer before signaling a scrolling error.
 A value of nil means just signal an error if no more scrolling possible.
 A value of t means point moves to the beginning or the end of the buffer
 \(depending on scrolling direction) when no more scrolling possible.
diff --git a/lisp/woman.el b/lisp/woman.el
index 078acfc0362..4999a08bb72 100644
--- a/lisp/woman.el
+++ b/lisp/woman.el
@@ -1439,7 +1439,7 @@ The cdr of each alist element is the path-index / filename."
           (push (woman-topic-all-completions-1 dir path-index)
                 files))
       (setq path-index (1+ path-index)))
-    ;; Uniquefy topics:
+    ;; Uniquify topics:
     ;; Concatenate all lists with a single nconc call to
     ;; avoid retraversing the first lists repeatedly  -- dak
     (woman-topic-all-completions-merge
diff --git a/src/ChangeLog.1 b/src/ChangeLog.1
index e32db190cd0..830905cd0b5 100644
--- a/src/ChangeLog.1
+++ b/src/ChangeLog.1
@@ -2375,7 +2375,7 @@
         Often, just return what it returned.
         `error' still never returns to its caller.
 
-        * Signalling Qargs_out_of_range:
+        * Signaling Qargs_out_of_range:
         Use new functions args_out_of_range and args_out_of_range_3
         (in data.c) to do this.
 
@@ -3537,4 +3537,3 @@
 
   You should have received a copy of the GNU General Public License
   along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
diff --git a/src/ChangeLog.10 b/src/ChangeLog.10
index 6152b4c76af..9b61d107059 100644
--- a/src/ChangeLog.10
+++ b/src/ChangeLog.10
@@ -5133,7 +5133,7 @@
         it can be called in a signal handler.
         (x_catch_errors_unwind): Function deleted.
         (x_uncatch_errors): Deallocate last x_error_message_stack struct.
-        (x_check_errors): Call x_uncatch_errors before signalling error.
+        (x_check_errors): Call x_uncatch_errors before signaling error.
 
         (x_load_font, x_term_init, XTmouse_position, handle_one_xevent)
         (x_connection_closed, x_list_fonts): Use new versions of
@@ -27928,4 +27928,3 @@ See ChangeLog.9 for earlier changes.
 
   You should have received a copy of the GNU General Public License
   along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
diff --git a/src/ChangeLog.11 b/src/ChangeLog.11
index bd1a6ec5918..49bafda36a0 100644
--- a/src/ChangeLog.11
+++ b/src/ChangeLog.11
@@ -11972,7 +11972,7 @@
 
         * image.c (xbm_read_bitmap_data): New arg inhibit_image_error.
         (xbm_load_image): Caller changed.
-        (xbm_file_p): Avoid signalling an image_error (Bug#4107).
+        (xbm_file_p): Avoid signaling an image_error (Bug#4107).
 
 2009-08-13  Nick Roberts  <nickrob@snap.net.nz>
 
@@ -16658,7 +16658,7 @@
 2008-08-20  Chong Yidong  <cyd@stupidchicken.com>
 
         * xselect.c (x_get_foreign_selection): Return nil if desired
-        selection could not be obtained, instead of signalling an error.
+        selection could not be obtained, instead of signaling an error.
 
 2008-08-20  David Reitter  <david.reitter@gmail.com>
 
diff --git a/src/ChangeLog.2 b/src/ChangeLog.2
index ca7feaee9f5..05e448c043c 100644
--- a/src/ChangeLog.2
+++ b/src/ChangeLog.2
@@ -1222,7 +1222,7 @@
 1987-07-10  Chris Hanson  (cph@prep)
 
         * xterm.h: Define macros to abstract control of input signals.
-        Alternate set of macros for hp-ux does no signalling.
+        Alternate set of macros for hp-ux does no signaling.
 
         * xterm.c:
         * xfns.c:
@@ -4787,4 +4787,3 @@ See ChangeLog.1 for earlier changes.
 
   You should have received a copy of the GNU General Public License
   along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
diff --git a/src/ChangeLog.3 b/src/ChangeLog.3
index 79a580938d7..2b63ed11bcc 100644
--- a/src/ChangeLog.3
+++ b/src/ChangeLog.3
@@ -900,9 +900,9 @@
         invalid overlay.
         (syms_of_buffer): defsubr Soverlayp; initialize Qoverlayp.
         (Fdelete_overlay): Set the overlay's markers to point nowhere.
-        Use CHECK_OVERLAY instead of signalling a special error.
+        Use CHECK_OVERLAY instead of signaling a special error.
         (Fmove_overlay, Foverlay_put): Use CHECK_OVERLAY instead of
-        signalling a special error.
+        signaling a special error.
         (Foverlay_get): Use CHECK_OVERLAY.
         * fns.c (internal_equal): Define this for overlays.
         * buffer.h (OVERLAY_VALID): Define in terms of OVERLAYP.
@@ -5549,7 +5549,7 @@
         h->poll_suppress_count.
 
         * eval.c (Fsignal): It's okay for the debugger to return to the
-        caller if the caller was signalling a quit.
+        caller if the caller was signaling a quit.
 
         * eval.c (unbind_catch): Restore the polling suppression count
         here, instead of in Fsignal and Fthrow.
@@ -10592,7 +10592,7 @@
         (init_x_parm_symbols, x_set_screen_param): Use x_screen_parms
         instead of a large switch statement.
         (x_figure_window_size): Make the default case of the switch call
-        abort instead of signalling an error, since window_prompting's
+        abort instead of signaling an error, since window_prompting's
         value is internally generated.
 
 1991-05-01  Jim Blandy  (jimb@churchy.gnu.ai.mit.edu)
@@ -14884,7 +14884,7 @@
 
 1989-08-07  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)
 
-        * fileio.c (barf_or_query_if_file_exists): When signalling,
+        * fileio.c (barf_or_query_if_file_exists): When signaling,
         provide the expected args for a file-error.
 
 1989-08-06  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)
diff --git a/src/ChangeLog.8 b/src/ChangeLog.8
index 6fd4d5dea27..0bb96b55c30 100644
--- a/src/ChangeLog.8
+++ b/src/ChangeLog.8
@@ -919,7 +919,7 @@
 1999-11-28  Eli Zaretskii  <eliz@is.elta.co.il>
 
         * charset.c (Fmake_char_internal): Print the charset ID when
-        signalling an error.
+        signaling an error.
 
         * emacs.c (synchronize_locale): Avoid compiler warnings about
         pointer type mismatch.
@@ -7367,7 +7367,7 @@
 
         * xfaces.c (free_font): Removed.
         (load_face_font_or_fontset): Renamed from load_font.
-        (load_face_font_or_fontset): Use message2 instead of signalling.
+        (load_face_font_or_fontset): Use message2 instead of signaling.
         (load_color): Likewise.
         (load_pixmap): Likewise.
 
diff --git a/src/bytecode.c b/src/bytecode.c
index 9ed29e94b54..91d360bec1b 100644
--- a/src/bytecode.c
+++ b/src/bytecode.c
@@ -271,7 +271,7 @@ struct byte_stack
 /* A list of currently active byte-code execution value stacks.
    Fbyte_code adds an entry to the head of this list before it starts
    processing byte-code, and it removed the entry again when it is
-   done.  Signalling an error truncates the list analoguous to
+   done.  Signaling an error truncates the list analoguous to
    gcprolist.  */
 
 struct byte_stack *byte_stack_list;
diff --git a/src/character.c b/src/character.c
index fb9b8a9b93e..c54c0046c53 100644
--- a/src/character.c
+++ b/src/character.c
@@ -969,7 +969,7 @@ character is a target to get a byte value.  In this case, POSITION, if
 non-nil, is an index of a target character in the string.
 
 If the current buffer (or STRING) is multibyte, and the target
-character is not ASCII nor 8-bit character, an error is signalled.  */)
+character is not ASCII nor 8-bit character, an error is signaled.  */)
   (Lisp_Object position, Lisp_Object string)
 {
   int c;
diff --git a/src/data.c b/src/data.c
index 76a54547a5d..e8d2b43198f 100644
--- a/src/data.c
+++ b/src/data.c
@@ -2028,7 +2028,7 @@ DEFUN ("indirect-function", Findirect_function, Sindirect_function, 1, 2, 0,
 If OBJECT is not a symbol, just return it.  Otherwise, follow all
 function indirections to find the final function binding and return it.
 If the final symbol in the chain is unbound, signal a void-function error.
-Optional arg NOERROR non-nil means to return nil instead of signalling.
+Optional arg NOERROR non-nil means to return nil instead of signaling.
 Signal a cyclic-function-indirection error if there is a loop in the
 function chain of symbols.  */)
   (register Lisp_Object object, Lisp_Object noerror)
diff --git a/src/regex.h b/src/regex.h
index 7747ec57629..eba62f2e769 100644
--- a/src/regex.h
+++ b/src/regex.h
@@ -415,7 +415,7 @@ struct re_pattern_buffer
 typedef struct re_pattern_buffer regex_t;
 
 /* Type for byte offsets within the string.  POSIX mandates this to be an int,
-   but the Open Group has signalled its intention to change the requirement to
+   but the Open Group has signaled its intention to change the requirement to
    be that regoff_t be at least as wide as ptrdiff_t and ssize_t.  Current
    gnulib sources also use ssize_t, and we need this for supporting buffers and
    strings > 2GB on 64-bit hosts.  */
diff --git a/src/s/msdos.h b/src/s/msdos.h
index 29ca0629899..9ee13d12867 100644
--- a/src/s/msdos.h
+++ b/src/s/msdos.h
@@ -119,7 +119,7 @@ You lose; /* Emacs for DOS must be compiled with DJGPP */
 #ifdef HAVE_X_WINDOWS
 /* We need a little extra space, see ../../lisp/loadup.el and the
    commentary below, in the non-X branch.  The 140KB number was
-   measured on GNU/Linux and on MS-WIndows.  */
+   measured on GNU/Linux and on MS-Windows.  */
 #define SYSTEM_PURESIZE_EXTRA (-170000+140000)
 #else
 /* We need a little extra space, see ../../lisp/loadup.el.
@@ -138,4 +138,3 @@ You lose; /* Emacs for DOS must be compiled with DJGPP */
    registers relevant for conservative garbage collection in the jmp_buf.  */
 #define GC_SETJMP_WORKS 1
 #define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS
-
diff --git a/src/window.c b/src/window.c
index 0a780a0170a..9c7e1349011 100644
--- a/src/window.c
+++ b/src/window.c
@@ -2344,7 +2344,7 @@ Anything else means consider all windows on WINDOW's frame and no
 others.
 
 If WINDOW is not on the list of windows returned, some other window will
-be listed first but no error is signalled.  */)
+be listed first but no error is signaled.  */)
   (Lisp_Object window, Lisp_Object minibuf, Lisp_Object all_frames)
 {
   return window_list_1 (window, minibuf, all_frames);
diff --git a/src/xdisp.c b/src/xdisp.c
index 6129c5e566f..15355e2d47a 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -23627,7 +23627,7 @@ produce_stretch_glyph (struct it *it)
     {
       width = it->last_visible_x - it->current_x;
 #ifdef HAVE_WINDOW_SYSTEM
-      /* Subtact one more pixel from the stretch width, but only on
+      /* Subtract one more pixel from the stretch width, but only on
          GUI frames, since on a TTY each glyph is one "pixel" wide.  */
       width -= FRAME_WINDOW_P (it->f);
 #endif
diff --git a/test/automated/ert-tests.el b/test/automated/ert-tests.el
index cea994f64b8..1fe6352e1fe 100644
--- a/test/automated/ert-tests.el
+++ b/test/automated/ert-tests.el
@@ -228,7 +228,7 @@ failed or if there was a problem."
                   :form (error "Foo")
                   :condition (error "Foo")
                   :fail-reason
-                  "the error signalled did not have the expected type"))))))
+                  "the error signaled did not have the expected type"))))))
   ;; Error of the expected type.
   (let* ((error nil)
          (test (make-ert-test
@@ -258,7 +258,7 @@ failed or if there was a problem."
                   :form (signal arith-error nil)
                   :condition (arith-error)
                   :fail-reason
-                  "the error signalled did not have the expected type"))))))
+                  "the error signaled did not have the expected type"))))))
   (let ((test (make-ert-test
                :body (lambda ()
                        (should-error (signal 'arith-error nil)
@@ -275,7 +275,7 @@ failed or if there was a problem."
                   :form (signal arith-error nil)
                   :condition (arith-error)
                   :fail-reason
-                  "the error signalled did not have the expected type"))))))
+                  "the error signaled did not have the expected type"))))))
   (let ((test (make-ert-test
                :body (lambda ()
                        (should-error (signal 'singularity-error nil)
@@ -292,7 +292,7 @@ failed or if there was a problem."
                   :form (signal singularity-error nil)
                   :condition (singularity-error)
                   :fail-reason
-                  "the error signalled was a subtype of the expected type")))))
+                  "the error signaled was a subtype of the expected type")))))
     ))
 
 (defmacro ert--test-my-list (&rest args)