American English spelling fix.

37 files changed, 75 insertions, 76 deletions

diff --git a/admin/notes/copyright b/admin/notes/copyright
index 47414baedea..f29aca7b437 100644
--- a/admin/notes/copyright
+++ b/admin/notes/copyright
@@ -151,7 +151,7 @@ etc/emacs.csh
  enough to not need license.
 
 etc/future-bug
- - doesn't need a humourless disclaimer, because Karl Fogel says we
+ - doesn't need a humorless disclaimer, because Karl Fogel says we
  can consider it part of Emacs, and he has a blanker disclaimer for
  Emacs changes. (email to rgm "[Emacs-commit] emacs/etc future-bug",
  2007028)
diff --git a/doc/misc/gnus.texi b/doc/misc/gnus.texi
index f1d57236355..dcdb5540ee1 100644
--- a/doc/misc/gnus.texi
+++ b/doc/misc/gnus.texi
@@ -12766,7 +12766,7 @@ Displayed when the signature has been hidden in the Article buffer.
 Displayed when Gnus has treated overstrike characters in the article buffer.
 
 @item e
-Displayed when Gnus has treated emphasised strings in the article buffer.
+Displayed when Gnus has treated emphasized strings in the article buffer.
 
 @end table
 
diff --git a/doc/misc/rcirc.texi b/doc/misc/rcirc.texi
index 9aa7ffc9221..01e86fb01fd 100644
--- a/doc/misc/rcirc.texi
+++ b/doc/misc/rcirc.texi
@@ -174,7 +174,7 @@ network are equivalent.  Some networks use a round-robin system where a
 single server redirects new connections to a random server in the
 network.  @code{irc.freenode.net} is such a server for the Freenode
 network.  Freenode provides the network ``for the Free and Open Source
-Software communities, for not-for-profit organisations and for related
+Software communities, for not-for-profit organizations and for related
 communities and organizations.''
 
 @cindex port, connecting
@@ -890,7 +890,7 @@ because @code{defun-rcirc-command} is not yet available, and without
 
 If you're chatting from a laptop, then you might be familiar with this
 problem: When your laptop falls asleep and wakes up later, your IRC
-client doesn't realise that it has been disconnected.  It takes several
+client doesn't realize that it has been disconnected.  It takes several
 minutes until the client decides that the connection has in fact been
 lost.  The simple solution is to use @kbd{M-x rcirc}.  The problem is
 that this opens an @emph{additional} connection, so you'll have two
diff --git a/etc/ChangeLog b/etc/ChangeLog
index 4a4d0d34da9..8788493de37 100644
--- a/etc/ChangeLog
+++ b/etc/ChangeLog
@@ -1880,7 +1880,7 @@
 
 2005-10-25  Nick Roberts  <nickrob@snap.net.nz>
 
-        * images/gud/until.xpm: Colour correction.
+        * images/gud/until.xpm: Color correction.
 
 2005-10-23  Richard M. Stallman  <rms@gnu.org>
 
@@ -2728,7 +2728,7 @@
 
 2003-04-01  Dave Love  <fx@gnu.org>
 
-        * letter.xpm: Use transparent/opaque `colours'.
+        * letter.xpm: Use transparent/opaque `colors'.
 
         * letter.xbm: Deleted.
 
diff --git a/etc/NEWS.19 b/etc/NEWS.19
index 5976a836d2c..9099b4e89ea 100644
--- a/etc/NEWS.19
+++ b/etc/NEWS.19
@@ -1953,7 +1953,7 @@ A new user option Man-fontify-manpage-flag disables fontification
 window system is used.  Two new user options Man-overstrike-face
 (default 'bold) and Man-underline-face (default 'underline) can be set
 to the preferred faces to be used for the words that man overstrikes
-and underlines.  Useful for those who like coloured man pages.
+and underlines.  Useful for those who like colored man pages.
 
 Two new interactive functions are provided: Man-cleanup-manpage and
 Man-fontify-manpage.  Both can be used on a buffer that contains the
diff --git a/etc/TODO b/etc/TODO
index 0c15e108dbc..e718f1c9bf9 100644
--- a/etc/TODO
+++ b/etc/TODO
@@ -526,8 +526,8 @@ when the body only calls primitives.
   probably in separate manual.
 
 ** Convert the XPM bitmaps to PPM, replace the PBMs with them and scrap
-  the XPMs so that the colour versions work generally.  (Requires care
-  with the colour used for the transparent regions.)
+  the XPMs so that the color versions work generally.  (Requires care
+  with the color used for the transparent regions.)
 
 ** Convenient access to the `values' variable.  It would be nice to have an
   interface that would show you the printed reps of the elements of the
diff --git a/etc/refcards/orgcard.tex b/etc/refcards/orgcard.tex
index 17617430cb6..933a8119435 100644
--- a/etc/refcards/orgcard.tex
+++ b/etc/refcards/orgcard.tex
@@ -739,7 +739,7 @@ some other place.
 %\key{turn on/off fixed width sections}{::t}
 %\key{turn on/off tables}{|:t}
 %\key{turn on/off \TeX\ syntax for sub/super-scripts}{\^{}:t}
-%\key{turn on/off emphasised text}{*:nil}
+%\key{turn on/off emphasized text}{*:nil}
 %\key{turn on/off \TeX\ macros}{TeX:t}
 
 {\bf Comments: Text not being exported}
diff --git a/etc/termcap.src b/etc/termcap.src
index ae7a3e390a3..aeb41745540 100644
--- a/etc/termcap.src
+++ b/etc/termcap.src
@@ -1257,7 +1257,7 @@ pcvt50w|dec vt220 emulation with 50 lines and 132 cols:\
         :co#132:li#50:\
         :is=\E[1;50r\E[50;1H:tc=pcvtXX:
 
-# Terminfo entries to enable the use of the ncurses library in colour on a
+# Terminfo entries to enable the use of the ncurses library in color on a
 # NetBSD-arm32 console (only tested on a RiscPC).
 # Created by Dave Millen <dmill@globalnet.co.uk> 22.07.98
 # modified codes for setf/setb to setaf/setab, then to klone+color, corrected
@@ -4973,7 +4973,7 @@ tvi803|televideo 803:\
 #     U  send ^J
 #     D  send ^V
 #
-# S2  7  Screen colour
+# S2  7  Screen color
 #     U  green on black
 #     D  black on green
 #
@@ -5024,7 +5024,7 @@ tvi910|televideo model 910:\
 # S2  4  Edit mode           (U = local, D = duplex)
 # S2  5  Cursor type         (U = underline, D = block)
 # S2  6  Cursor down key     (U = send ^J, D = send ^V)
-# S2  7  Screen colour       (U = green on black, D = black on green)
+# S2  7  Screen color       (U = green on black, D = black on green)
 # S2  8  DSR status (pin 6)  (U = disconnected, D = connected)
 # S2  9  DCD status (pin 8)  (U = disconnected, D = connected)
 # S2 10  DTR status (pin 20) (U = disconnected, D = connected)
@@ -11023,7 +11023,7 @@ infoton:\
 #ESC D F         set full duplex
 #ESC D H         set half duplex
 #ESC E           line insert
-#ESC F p1 p2     set page colour (p1 = f/grnd, p2 = b/grnd)
+#ESC F p1 p2     set page color (p1 = f/grnd, p2 = b/grnd)
 #                0 = black, 1 = red,     2 = green, 3 = yellow
 #                4 = blue,  5 = magenta, 6 = cyan,  7 = white
 #ESC G n         set serial field attribute (n = 30h - 3Fh)
@@ -11090,8 +11090,8 @@ infoton:\
 #                    = = reverse underline blank
 #                    > = reverse underline blink
 #                    ? = reverse underline blink blank
-#                p2, p3: f/grnd, b/grnd colour
-#                (see ESC F for colours)
+#                p2, p3: f/grnd, b/grnd color
+#                (see ESC F for colors)
 #                use ZZ for mono, eg.
 #                    ESC [ 0 Z Z for normal
 #                    ESC [ 4 Z Z for inverse etc.
@@ -11105,7 +11105,7 @@ infoton:\
 #                n = 0   normal (KDS7372) mode
 #                n = 1   Wordstar mode
 #
-#ESC b           set foreground colour screen
+#ESC b           set foreground color screen
 #
 #ESC c n         enter self-test mode:
 #                n = 0   exit self test mode
@@ -11119,7 +11119,7 @@ infoton:\
 #                n = 8   graphics memory test
 #                n = 9   display all 'E'
 #                n = :   display all 'H'
-#ESC d           set background colour screen
+#ESC d           set background color screen
 #
 #ESC e n         program insert char (n = insert char)
 #ESC f text CR   load user status line with 'text'
@@ -12282,7 +12282,7 @@ pe7000m|perkin elmer 7000 series monochrome monitor:\
         :k7=\E!^G:k8=\E!^H:k9=\E!^I:k;=\E!^J:kb=^H:kd=\E!U:kh=\E!S:\
         :kl=\E!V:kr=\E!W:ku=\E!T:le=\ED:ll=\ES7\s:nd=\EC:sf=^J:\
         :sr=\ER:up=\EA:
-pe7000c|perkin elmer 7000 series colour monitor:\
+pe7000c|perkin elmer 7000 series color monitor:\
         :i1=\E!\0\EW  7o\Egf\Eb0\Ec7\ES7\s:se=\Eb0:so=\Eb2:\
         :ue=\E!\0:us=\E!\s:tc=pe7000m:
 
@@ -13981,7 +13981,7 @@ mai|basic4|MAI Basic Four in ansi mode:\
 # Mikrocomputer GmbH" in Munster, Germany (the company still exists today,
 # about 1,5 km from where I live, but doesn't build own computers any
 # more). A Basis 108 featured a really heavy (cast aluminum?) case, was
-# equipped with one or two 5.25" disk drives, had a monochrome and colour
+# equipped with one or two 5.25" disk drives, had a monochrome and color
 # video output for a TV set or a dedicated monitor and several slots for
 # Apple II cards. Basis 108 were quite popular at german schools before
 # the advent of the IBM PC. They run, for example, the UCSD Pascal
@@ -14219,7 +14219,7 @@ bg1.25|bbn bitgraph 1.25:\
 #       Typical firmware identification F5 "etat 6":
 #  P287.02.04b  (AZERTY)
 #  P297.11.04   (24-pin: 2732)  or P798.11.04   (28-pin: 2764)
-#  P298.03.03   (monochrome)    or P374.03.02   (colour)
+#  P298.03.03   (monochrome)    or P374.03.02   (color)
 #
 #       SM SDP mode (VIP command):      ^[[?=h
 #       RIS (erases screen):            ^[c
@@ -14289,7 +14289,7 @@ dku7102-old|BULL Questar 200 DKU7102 (microcode version < 6):\
         :AL@:DL@:al@:ce=\E[K\E[m:cl=\E[2J\E[H:cm@:dl@:\
         :ds=\EPY99\:98\E\\\E[0;98v\E[2J\E[H\E[v:\
         :ts=\EPY99\:98\E\\\E[0;98v\E[H\E[2;7m:tc=tws-generic:
-dku7202|BULL Questar 200 DKU7202 (colour/character attributes):\
+dku7202|BULL Questar 200 DKU7202 (color/character attributes):\
         :i2=\E[?3h\Eb:mb=\E[0;2;4m:mh=\E[0;5m:so=\E[0;4;5;7m:\
         :ta=^I:us=\E[0;2m:tc=tws-generic:
 
@@ -14874,7 +14874,7 @@ ddr|rebus3180|ddr3180|Rebus/DDR 3180 vt100 emulator:\
 # Approximate date of release was 1982 (early 80s, anyway), and it had several
 # evolutions including (limited) color versions such as the PS330C. PS300s
 # were effectively obsolete by the late 80s, replaced by raster graphics
-# systems, although specialized applications like molecular modelling
+# systems, although specialized applications like molecular modeling
 # hung onto them for a while longer.  AFAIK all E&S vector graphics systems
 # are out of production, though of course E&S is very much alive (in 1996).
 # (ps300: changed ":pt@:" to "it@" -- esr)
diff --git a/lib-src/ChangeLog b/lib-src/ChangeLog
index 991031daedd..ae247d96cfe 100644
--- a/lib-src/ChangeLog
+++ b/lib-src/ChangeLog
@@ -1533,7 +1533,7 @@
 
         * etags.c (add_regex): Better check for null regexps.
         (readline): Check for regex matching null string.
-        (find_entries): Reorganisation.
+        (find_entries): Reorganization.
 
 2002-06-07  Francesco Potortì  <pot@gnu.org>
 
diff --git a/lib-src/etags.c b/lib-src/etags.c
index 23eefd6865a..f577c751a28 100644
--- a/lib-src/etags.c
+++ b/lib-src/etags.c
@@ -65,7 +65,7 @@ University of California, as described above. */
  * 1985 Emacs TAGS format by Richard Stallman.
  * 1989 Sam Kendall added C++.
  * 1992 Joseph B. Wells improved C and C++ parsing.
- * 1993 Francesco Potortì reorganised C and C++.
+ * 1993 Francesco Potortì reorganized C and C++.
  * 1994 Line-by-line regexp tags by Tom Tromey.
  * 2001 Nested classes by Francesco Potortì (concept by Mykola Dzyuba).
  * 2002 #line directives by Francesco Potortì.
diff --git a/lisp/ChangeLog.10 b/lisp/ChangeLog.10
index 9918be38212..bd0703de132 100644
--- a/lisp/ChangeLog.10
+++ b/lisp/ChangeLog.10
@@ -8103,7 +8103,7 @@
         * tooltip.el (tooltip-gud-print-command): Add server prefix to the
         print command for gdb to keep it out of the command history.
 
-        * gdb-ui.el: Major re-organisation.  Simplify legacy gdba
+        * gdb-ui.el: Major re-organization.  Simplify legacy gdba
         code to allow only one gdb process.
 
 2002-11-23  Markus Rost  <rost@math.ohio-state.edu>
@@ -10404,7 +10404,7 @@
         `file-exists-p.
         (tramp-completion-handle-file-exists-p): New function.
         (tramp-completion-handle-file-name-completion): Simplified.
-        (tramp-completion-dissect-file-name): Regexp's reorganised.
+        (tramp-completion-dissect-file-name): Regexp's reorganized.
         (tramp-completion-handle-file-name-all-completions):
         Call completion-function only if `user' or `host' is given.
         (tramp-get-completion-user-host): New function.
diff --git a/lisp/ChangeLog.12 b/lisp/ChangeLog.12
index 1ab643c9ff5..db12cac619c 100644
--- a/lisp/ChangeLog.12
+++ b/lisp/ChangeLog.12
@@ -18817,7 +18817,7 @@
         (gdb-goto-breakpoint): Try to force display in source buffer.
         (gdb-frame-gdb-buffer): Copy other similar functions.
         (gdb-restore-windows): Don't display source if not asked for.
-        (gdb-assembler-buffer-name): Don't capitalise.
+        (gdb-assembler-buffer-name): Don't capitalize.
 
 2005-11-03  Richard M. Stallman  <rms@gnu.org>
 
diff --git a/lisp/ChangeLog.13 b/lisp/ChangeLog.13
index 43ccb0b4ff8..a7246c3ab57 100644
--- a/lisp/ChangeLog.13
+++ b/lisp/ChangeLog.13
@@ -11224,7 +11224,7 @@
         (server-execute, server-return-error): New functions extracted from
         server-process-filter.
         (server-execute-continuation): New functions.
-        (server-process-filter): Restructure so that all arguments are analysed
+        (server-process-filter): Restructure so that all arguments are analyzed
         first and then acted upon in a subsequent stage.  This way
         server-goto-toplevel can be executed later, when we know if
         it's necessary.
diff --git a/lisp/ChangeLog.6 b/lisp/ChangeLog.6
index f39682479bc..c4c00ffb082 100644
--- a/lisp/ChangeLog.6
+++ b/lisp/ChangeLog.6
@@ -4591,7 +4591,7 @@
 1995-12-13  Simon Marshall  <simon@duality.gnu.ai.mit.edu>
 
         * faces.el (modify-face): Take extra optional arg FRAME.
-        Use face-try-color-list to change foreground and background colours.
+        Use face-try-color-list to change foreground and background colors.
         If BOLD-P, ITALIC-P or UNDERLINE-P not nil or t, don't change the
         display attribute corresponding to that arg.  Doc fix.
 
@@ -5477,7 +5477,7 @@
 
 1995-10-26  Simon Marshall  <simon@duality.gnu.ai.mit.edu>
 
-        * font-lock.el: General reorganisation.
+        * font-lock.el: General reorganization.
         (font-lock-fontify-syntactically-region): Renamed from
         font-lock-fontify-region.  Assume that region end-points are at bol.
         Don't bother wrapping with save-excursion; caller does this.
diff --git a/lisp/ChangeLog.8 b/lisp/ChangeLog.8
index f4f8e291933..d74795ecfe1 100644
--- a/lisp/ChangeLog.8
+++ b/lisp/ChangeLog.8
@@ -3881,7 +3881,7 @@
         (frame-delete-all): Moved to subr.el as `assoc-delete-all'.
         Callers changed.
         (set-background-color, set-foreground-color, set-cursor-color)
-        (set-mouse-color, set-border-color): Offer completion of colours.
+        (set-mouse-color, set-border-color): Offer completion of colors.
         (cursor): Add :version to defgroup.
 
         * facemenu.el (list-colors-display): Make it work on ttys.
@@ -6146,7 +6146,7 @@
         correctly between an object declared via a constructor and a method.
         (font-lock-defaults-alist): Don't give `.' word syntax for Java.
         (java-font-lock-keywords-1): Fontify package names individually.
-        (java-font-lock-extra-types): Ensure regexp matches capitalised only.
+        (java-font-lock-extra-types): Ensure regexp matches capitalized only.
         (java-font-lock-keywords-2): Simplify type fontification.
         (java-font-lock-keywords-3): Likewise.
 
diff --git a/lisp/ChangeLog.9 b/lisp/ChangeLog.9
index 7134dcbb6b1..51f29b94b48 100644
--- a/lisp/ChangeLog.9
+++ b/lisp/ChangeLog.9
@@ -10523,7 +10523,7 @@
         * toolbar/open.xpm, toolbar/undo.xpm, toolbar/home.xpm:
         * toolbar/paste.xpm, toolbar/up_arrow.xpm, toolbar/index.xpm:
         * toolbar/preferences.xpm, toolbar/info.xpm, toolbar/print.xpm:
-        Reduce colour requirements to 25 overall.  (Probably wants
+        Reduce color requirements to 25 overall.  (Probably wants
         revisiting from the originals to reduce further.)
 
 2000-10-11  Eli Zaretskii  <eliz@is.elta.co.il>
@@ -17047,7 +17047,7 @@
         (widget-leave-text, widget-children-value-delete): Use mapc.
         (widget-keymap): Remove XEmacs stuff.
         (widget-field-keymap, widget-text-keymap): Define all inside defvar.
-        (widget-button-click): Don't set point at the click, but re-centre
+        (widget-button-click): Don't set point at the click, but re-center
         if we scroll out of window.  Rewritten for images v. glyphs &c.
         (widget-tabable-at): Use POS arg, not point.
         (widget-beginning-of-line, widget-end-of-line)
diff --git a/lisp/calendar/calendar.el b/lisp/calendar/calendar.el
index 9ffac71fe73..dc2f8ce9079 100644
--- a/lisp/calendar/calendar.el
+++ b/lisp/calendar/calendar.el
@@ -1415,7 +1415,7 @@ line."
    ;; Put in the days of the month.
    (dotimes (i last)
      (setq day (1+ i))
-     ;; TODO should numbers be left-justified, centred...?
+     ;; TODO should numbers be left-justified, centered...?
      (insert (format (format "%%%dd%%s" calendar-day-digit-width) day
                      (make-string
                       (- calendar-column-width calendar-day-digit-width) ?\s)))
diff --git a/lisp/calendar/todo-mode.el b/lisp/calendar/todo-mode.el
index 2a47173f9e6..2e246bfcf5a 100644
--- a/lisp/calendar/todo-mode.el
+++ b/lisp/calendar/todo-mode.el
@@ -209,7 +209,7 @@
 ;;      the end of the loop and you will insert your item just before
 ;;      that point.  If you set the threshold to, e.g. 8, it will stop
 ;;      as soon as the window size drops below that amount and will
-;;      insert the item in the approximate centre of that window.  I
+;;      insert the item in the approximate center of that window.  I
 ;;      got the idea for this feature after reading a very helpful
 ;;      e-mail reply from Trey Jackson <trey@cs.berkeley.edu> who
 ;;      corrected some of my awful coding and pointed me towards some
diff --git a/lisp/erc/ChangeLog.03 b/lisp/erc/ChangeLog.03
index 30e6664dd27..526042ea08d 100644
--- a/lisp/erc/ChangeLog.03
+++ b/lisp/erc/ChangeLog.03
@@ -1474,7 +1474,7 @@
 
         * erc.el:
         erc-error-face: setting a background doesn't work so well with multi-line
-            messages, so we don't. fg colour is negotiable ;-)
+            messages, so we don't. fg color is negotiable ;-)
         (erc-cmd-QUERY): fixed, new doco, supress (erc-delete-query) until we fix it
         (erc-send-current-line): allow multi-line messages provided they don't start
             with a slash - there's no need to prohibit them if the slash isn't the
diff --git a/lisp/erc/erc-capab.el b/lisp/erc/erc-capab.el
index e153e0185d2..2a6e2811a0d 100644
--- a/lisp/erc/erc-capab.el
+++ b/lisp/erc/erc-capab.el
@@ -43,7 +43,7 @@
 ;; From freenode.net's web site (not there anymore) on how to mark
 ;; unidentified users:
 ;; "We recommend that you add an asterisk before the nick, and
-;;  optionally either highlight or colourize the line in some
+;;  optionally either highlight or colorize the line in some
 ;;  appropriate fashion, if the user is not identified."
 
 ;;; Usage:
diff --git a/lisp/font-lock.el b/lisp/font-lock.el
index e139b5975c7..9206da2875c 100644
--- a/lisp/font-lock.el
+++ b/lisp/font-lock.el
@@ -195,8 +195,8 @@
 ;;   i.e., (b) above, all modes that have items that can be thought of as, say,
 ;;   keywords, should be highlighted with the same face, etc.
 ;; - Make the face attributes fit the concept as far as possible.
-;;   i.e., function names might be a bold colour such as blue, comments might
-;;   be a bright colour such as red, character strings might be brown, because,
+;;   i.e., function names might be a bold color such as blue, comments might
+;;   be a bright color such as red, character strings might be brown, because,
 ;;   err, strings are brown (that was not the reason, please believe me).
 ;; - Don't use a non-nil OVERRIDE unless you have a good reason.
 ;;   Only use OVERRIDE for special things that are easy to define, such as the
@@ -1824,7 +1824,7 @@ Sets various variables using `font-lock-defaults' (or, if nil, using
         (setq font-lock-keywords
               (font-lock-compile-keywords font-lock-keywords))))))
 
-;;; Colour etc. support.
+;;; Color etc. support.
 
 ;; Note that `defface' will not overwrite any faces declared above via
 ;; `custom-declare-face'.
@@ -1981,7 +1981,7 @@ Sets various variables using `font-lock-defaults' (or, if nil, using
   "Font Lock mode face used to highlight grouping constructs in Lisp regexps."
   :group 'font-lock-faces)
 
-;;; End of Colour etc. support.
+;;; End of Color etc. support.
 
 ;;; Menu support.
 
diff --git a/lisp/gnus/ChangeLog.2 b/lisp/gnus/ChangeLog.2
index f74f8d634d9..c1f8769a6b9 100644
--- a/lisp/gnus/ChangeLog.2
+++ b/lisp/gnus/ChangeLog.2
@@ -2390,7 +2390,7 @@
 
 2003-05-10  Lars Magne Ingebrigtsen  <larsi@gnus.org>
 
-        * gnus.el (gnus-logo-color-alist): Added no colours.
+        * gnus.el (gnus-logo-color-alist): Added no colors.
 
 2003-05-09  Dave Love  <fx@gnu.org>
 
diff --git a/lisp/gnus/mml1991.el b/lisp/gnus/mml1991.el
index 17793b2a4b0..1a7588b4349 100644
--- a/lisp/gnus/mml1991.el
+++ b/lisp/gnus/mml1991.el
@@ -133,7 +133,7 @@ Whether the passphrase is cached at all is controlled by
              'never))
         cipher
         (result-buffer (get-buffer-create "*GPG Result*")))
-    ;; Strip MIME Content[^ ]: headers since it will be ASCII ARMOURED
+    ;; Strip MIME Content[^ ]: headers since it will be ASCII ARMORED
     (goto-char (point-min))
     (while (looking-at "^Content[^ ]+:") (forward-line))
     (unless (bobp)
@@ -213,7 +213,7 @@ Whether the passphrase is cached at all is controlled by
   (let ((text (current-buffer))
         cipher
         (result-buffer (get-buffer-create "*GPG Result*")))
-    ;; Strip MIME Content[^ ]: headers since it will be ASCII ARMOURED
+    ;; Strip MIME Content[^ ]: headers since it will be ASCII ARMORED
     (goto-char (point-min))
     (while (looking-at "^Content[^ ]+:") (forward-line))
     (unless (bobp)
@@ -303,7 +303,7 @@ Whether the passphrase is cached at all is controlled by
     (let ((cte (save-restriction
                  (narrow-to-region (point-min) (point))
                  (mail-fetch-field "content-transfer-encoding"))))
-      ;; Strip MIME headers since it will be ASCII armoured.
+      ;; Strip MIME headers since it will be ASCII armored.
       (forward-line 1)
       (delete-region (point-min) (point))
       (when cte
@@ -424,7 +424,7 @@ If no one is selected, default secret key is used.  "
     (let ((cte (save-restriction
                  (narrow-to-region (point-min) (point))
                  (mail-fetch-field "content-transfer-encoding"))))
-      ;; Strip MIME headers since it will be ASCII armoured.
+      ;; Strip MIME headers since it will be ASCII armored.
       (forward-line 1)
       (delete-region (point-min) (point))
       (when cte
diff --git a/lisp/gnus/smime.el b/lisp/gnus/smime.el
index 712880d486c..c7d32e47792 100644
--- a/lisp/gnus/smime.el
+++ b/lisp/gnus/smime.el
@@ -63,7 +63,7 @@
 ;;
 ;; Now you should be able to sign messages!  Create a buffer and write
 ;; something and run M-x smime-sign-buffer RET RET and you should see
-;; your message MIME armoured and a signature.  Encryption, M-x
+;; your message MIME armored and a signature.  Encryption, M-x
 ;; smime-encrypt-buffer, should also work.
 ;;
 ;; To be able to verify messages you need to build up trust with
diff --git a/lisp/hl-line.el b/lisp/hl-line.el
index 0071dfe3315..dae21af0b84 100644
--- a/lisp/hl-line.el
+++ b/lisp/hl-line.el
@@ -38,7 +38,7 @@
 ;; local mode behave like the global mode.
 
 ;; You probably don't really want to use the global mode; if the
-;; cursor is difficult to spot, try changing its colour, relying on
+;; cursor is difficult to spot, try changing its color, relying on
 ;; `blink-cursor-mode' or both.  The hookery used might affect
 ;; response noticeably on a slow machine.  The local mode may be
 ;; useful in non-editing buffers such as Gnus or PCL-CVS though.
diff --git a/lisp/mh-e/ChangeLog.1 b/lisp/mh-e/ChangeLog.1
index 8bc2bb69f0f..3609b0683c5 100644
--- a/lisp/mh-e/ChangeLog.1
+++ b/lisp/mh-e/ChangeLog.1
@@ -10443,8 +10443,8 @@
 2001-12-04  Peter S Galbraith  <psg@debian.org>
 
         * mh-e.el (mh-folder-subject-face et al.): Yet another attempt at
-        colours for folder-mode.  Still themed, but fewer and darker
-        colours (Blame Eric this time!).  I'll get to underlining tomorrow
+        colors for folder-mode.  Still themed, but fewer and darker
+        colors (Blame Eric this time!).  I'll get to underlining tomorrow
         night.
 
         * mh-e.el (mh-folder-tool-bar-map): Renamed all icons so they
diff --git a/lisp/org/org-table.el b/lisp/org/org-table.el
index 45981776c43..7050ecaabac 100644
--- a/lisp/org/org-table.el
+++ b/lisp/org/org-table.el
@@ -1864,7 +1864,7 @@ For all numbers larger than LIMIT, shift them by DELTA."
                      (string-match "^[a-zA-Z][a-zA-Z0-9]*$" field))
               (push (cons field v) org-table-local-parameters)
               (push (list field line col) org-table-named-field-locations))))
-      ;; Analyse the line types
+      ;; Analyze the line types
       (goto-char beg)
       (setq org-table-current-begin-line (org-current-line)
             org-table-current-begin-pos (point)
diff --git a/lisp/play/5x5.el b/lisp/play/5x5.el
index bb2cb0d4c21..30a13cba927 100644
--- a/lisp/play/5x5.el
+++ b/lisp/play/5x5.el
@@ -33,7 +33,7 @@
 ;; o The code for updating the grid needs to be re-done. At the moment it
 ;;   simply re-draws the grid every time a move is made.
 ;;
-;; o Look into tarting up the display with colour. gamegrid.el looks
+;; o Look into tarting up the display with color. gamegrid.el looks
 ;;   interesting, perhaps that is the way to go?
 
 ;;; Thanks:
diff --git a/lisp/progmodes/cc-awk.el b/lisp/progmodes/cc-awk.el
index 136b233208a..48dc7a4f47f 100644
--- a/lisp/progmodes/cc-awk.el
+++ b/lisp/progmodes/cc-awk.el
@@ -26,9 +26,9 @@
 
 ;; This file contains (most of) the adaptations to cc-mode required for the
 ;; integration of AWK Mode.
-;; It is organised thusly, the sections being separated by page breaks:
+;; It is organized thusly, the sections being separated by page breaks:
 ;;   1. The AWK Mode syntax table.
-;;   2. Regular expressions for analysing AWK code.
+;;   2. Regular expressions for analyzing AWK code.
 ;;   3. Indentation calculation stuff ("c-awk-NL-prop text-property").
 ;;   4. Syntax-table property/font-locking stuff, including the
 ;;      font-lock-keywords setting.
@@ -710,7 +710,7 @@
   ;;
   ;; ANCHOR-STATE-/DIV identifies whether a / at ANCHOR would have been a
   ;; division sign (value t) or a regexp opener (value nil).  The idea is that
-  ;; we analyse the line from ANCHOR up till point to determine what the / at
+  ;; we analyze the line from ANCHOR up till point to determine what the / at
   ;; point is.
   ;;
   ;; The result is what ANCHOR-STATE-/DIV (see above) is where point is left.
diff --git a/lisp/progmodes/sh-script.el b/lisp/progmodes/sh-script.el
index 48bfd1ceacb..f733ccb788d 100644
--- a/lisp/progmodes/sh-script.el
+++ b/lisp/progmodes/sh-script.el
@@ -875,7 +875,7 @@ See `sh-feature'.")
   "Face to show a here-document"
   :group 'sh-indentation)
 
-;; These colours are probably icky.  It's just a placeholder though.
+;; These colors are probably icky.  It's just a placeholder though.
 (defface sh-quoted-exec
   '((((class color) (background dark))
      (:foreground "salmon"))
diff --git a/lisp/vc-hg.el b/lisp/vc-hg.el
index 7d4150fbb20..2b3e8db2cae 100644
--- a/lisp/vc-hg.el
+++ b/lisp/vc-hg.el
@@ -138,7 +138,7 @@
 ;;;###autoload         (load "vc-hg")
 ;;;###autoload         (vc-hg-registered file))))
 
-;; Modelled after the similar function in vc-bzr.el
+;; Modeled after the similar function in vc-bzr.el
 (defun vc-hg-registered (file)
   "Return non-nil if FILE is registered with hg."
   (when (vc-hg-root file)           ; short cut
@@ -272,7 +272,7 @@
       (split-string
        (buffer-substring-no-properties (point-min) (point-max))))))
 
-;; Modelled after the similar function in vc-cvs.el
+;; Modeled after the similar function in vc-cvs.el
 (defun vc-hg-revision-completion-table (files)
   (lexical-let ((files files)
                 table)
@@ -330,7 +330,7 @@ Optional arg REVISION is a revision to annotate from."
     (when (<= newrev tip-revision)
       (number-to-string newrev))))
 
-;; Modelled after the similar function in vc-bzr.el
+;; Modeled after the similar function in vc-bzr.el
 (defun vc-hg-delete-file (file)
   "Delete FILE and delete it in the hg repository."
   (condition-case ()
@@ -338,7 +338,7 @@ Optional arg REVISION is a revision to annotate from."
     (file-error nil))
   (vc-hg-command nil 0 file "remove" "--after" "--force"))
 
-;; Modelled after the similar function in vc-bzr.el
+;; Modeled after the similar function in vc-bzr.el
 (defun vc-hg-rename-file (old new)
   "Rename file from OLD to NEW using `hg mv'."
   (vc-hg-command nil 0 new "mv" old))
@@ -355,7 +355,7 @@ COMMENT is ignored."
 
 (defalias 'vc-hg-responsible-p 'vc-hg-root)
 
-;; Modelled after the similar function in vc-bzr.el
+;; Modeled after the similar function in vc-bzr.el
 (defun vc-hg-could-register (file)
   "Return non-nil if FILE could be registered under hg."
   (and (vc-hg-responsible-p file)      ; shortcut
@@ -383,7 +383,7 @@ REV is ignored."
         (vc-hg-command buffer 0 file "cat" "-r" rev)
       (vc-hg-command buffer 0 file "cat"))))
 
-;; Modelled after the similar function in vc-bzr.el
+;; Modeled after the similar function in vc-bzr.el
 (defun vc-hg-checkout (file &optional editable rev)
   "Retrieve a revision of FILE.
 EDITABLE is ignored.
@@ -395,11 +395,11 @@ REV is the revision to check out into WORKFILE."
         (vc-hg-command t 0 file "cat" "-r" rev)
       (vc-hg-command t 0 file "cat")))))
 
-;; Modelled after the similar function in vc-bzr.el
+;; Modeled after the similar function in vc-bzr.el
 (defun vc-hg-workfile-unchanged-p (file)
   (eq 'up-to-date (vc-hg-state file)))
 
-;; Modelled after the similar function in vc-bzr.el
+;; Modeled after the similar function in vc-bzr.el
 (defun vc-hg-revert (file &optional contents-done)
   (unless contents-done
     (with-temp-buffer (vc-hg-command t 0 file "revert"))))
diff --git a/lisp/woman.el b/lisp/woman.el
index 18cb2319c04..faf0a1c1793 100644
--- a/lisp/woman.el
+++ b/lisp/woman.el
@@ -2800,7 +2800,7 @@ Replaces || by |, but | by \, where | denotes the internal escape."
   "Process .de/am xx yy -- (re)define/append macro xx; end at `..'.
 \(Should be up to call of yy, which defaults to `.')
 Optional argument APPEND, if non-nil, means append macro."
-  ;; Modelled on woman-strings.  BEWARE: Processing of .am is a hack!
+  ;; Modeled on woman-strings.  BEWARE: Processing of .am is a hack!
   ;; Add support for .rm?
   ;; (skip-chars-forward " \t")
   (if (eolp)                            ; ignore if no argument
diff --git a/src/ChangeLog.2 b/src/ChangeLog.2
index 72dd7a89e46..8165842f616 100644
--- a/src/ChangeLog.2
+++ b/src/ChangeLog.2
@@ -2683,7 +2683,7 @@
         * emacs.c,  dispnew.c:
         Rename inhibit_x_windows inhibit_window_system.
         Understand "-nw" command-line option.
-        Reorganise init_display a little to make other window-system
+        Reorganize init_display a little to make other window-system
         code easier to accommodate.
 
         * editfns.c (Fformat):
diff --git a/src/ChangeLog.5 b/src/ChangeLog.5
index 8b003decef0..dd4ba75089d 100644
--- a/src/ChangeLog.5
+++ b/src/ChangeLog.5
@@ -4587,7 +4587,7 @@
         (Fframep #2) [MSDOS]: Return 'pc for when termcap is not used.
         (Fmouse_position #2) [HAVE_MOUSE]: Return useful information.
         (Fframe_parameters #2): Show "font" as "default".
-        (Fframe_parameters #2) [MSDOS]: Show fore- and background colours.
+        (Fframe_parameters #2) [MSDOS]: Show fore- and background colors.
         (Fmodify_frame_parameters #2) [MSDOS]: Call IT_set_frame_parameters.
         (Fframe_list #2): New stub function.
         (syms_of_frame #2): defsubr frame_list.
@@ -4671,7 +4671,7 @@
         * sysdep.c (init_sys_modes): Make sure that internal_terminal_init
         is only called once.
         (init_sys_modes, reset_sys_modes) [HAVE_X_WINDOWS]: Add conditional.
-        (reset_sys_modes) [MSDOS]: Change to MSDOG's default colours.
+        (reset_sys_modes) [MSDOS]: Change to MSDOG's default colors.
         (kbd_input_ast): Use just XSETFRAME.
 
         * window.c (init_window_once) [!MULTI_FRAME]: Set selected_frame and
@@ -4691,7 +4691,7 @@
         stubs.
         (load_color) [MSDOS && !HAVE_X_WINDOWS]: Special version.
         (Fset_face_attribute_internal) [MSDOS && !HAVE_X_WINDOWS]: Stubify
-        font setting, mask away 0x08 (the blink bit) from background colour.
+        font setting, mask away 0x08 (the blink bit) from background color.
         (syms_of_xfaces) [!HAVE_X_WINDOWS]: Don't defsubr Spixmap_spec_p.
         (Fmake_face_internal): Use FOR_EACH_FRAME.
         (init_frame_faces): Guard multi-frame stuff with MULTI_FRAME.
diff --git a/src/ChangeLog.8 b/src/ChangeLog.8
index 5e12b506a36..49d6f09257c 100644
--- a/src/ChangeLog.8
+++ b/src/ChangeLog.8
@@ -11455,9 +11455,8 @@
 
 1999-05-15  Andrew Innes  <andrewi@gnu.org>
 
-        * w32term.c (dumpglyphs): Use correct colours for drawing
-        rectangles in place of missing fonts, and make them the right
-        size.
+        * w32term.c (dumpglyphs): Use correct colors for drawing
+        rectangles in place of missing fonts, and make them the right size.
 
 1999-05-14  Dave Love  <fx@gnu.org>
 
diff --git a/src/gtkutil.c b/src/gtkutil.c
index fb766c445a4..996d3f49892 100644
--- a/src/gtkutil.c
+++ b/src/gtkutil.c
@@ -1025,7 +1025,7 @@ x_wm_set_size_hint (f, flags, user_position)
 }
 
 /* Change background color of a frame.
-   Since GTK uses the background colour to clear the window, we must
+   Since GTK uses the background color to clear the window, we must
    keep the GTK and X colors in sync.
    F is the frame to change,
    BG is the pixel value to change to.  */
diff --git a/src/s/msdos.h b/src/s/msdos.h
index ea940e5383c..73e62ecad6c 100644
--- a/src/s/msdos.h
+++ b/src/s/msdos.h
@@ -200,7 +200,7 @@ You lose; /* Emacs for DOS must be compiled with DJGPP */
 #define FLOAT_CHECK_DOMAIN
 
 /* When $TERM is "internal" then this is substituted:  */
-#define INTERNAL_TERMINAL "pc|bios|IBM PC with colour display:\
+#define INTERNAL_TERMINAL "pc|bios|IBM PC with color display:\
 :co#80:li#25:Co#16:pa#256:km:ms:cm=<CM>:cl=<CL>:ce=<CE>:\
 :se=</SO>:so=<SO>:us=<UL>:ue=</UL>:md=<BD>:mh=<DIM>:mb=<BL>:mr=<RV>:me=<NV>:\
 :AB=<BG %d>:AF=<FG %d>:op=<DefC>:"