Correct misspellings.
diff --git a/Doc/lib/tkinter.tex b/Doc/lib/tkinter.tex
index f223ff6..405f041 100644
--- a/Doc/lib/tkinter.tex
+++ b/Doc/lib/tkinter.tex
@@ -476,7 +476,7 @@
 Note that the man pages list "STANDARD OPTIONS" and "WIDGET SPECIFIC
 OPTIONS" for each widget.  The former is a list of options that are
 common to many widgets, the latter are the options that are
-ideosyncratic to that particular widget.  The Standard Options are
+idiosyncratic to that particular widget.  The Standard Options are
 documented on the \manpage{options}{3} man page.
 
 No distinction between standard and widget-specific options is made in