[Peter Lewerin]'s ''bon mot'' to refer to the Tcl(n) manual page
[http://www.tcl.tk/man/tcl8.3/TclCmd/Tcl.htm], with its eleven
rules that form the whole of Tcl's syntax.

It's a pun on the Dekalogue (Ten Words), the Greek term for the
Ten Commandments; the Greek for Eleven Words is Endekalogue.