From: utzoo!decvax!harpo!zeppo!wheps!eagle!mhuxt!mhuxa!mhuxh!bwkna!ljs
Newsgroups: net.followup
Title: Xmas
Article-I.D.: bwkna.126
Posted: Thu Nov 18 09:18:55 1982
Received: Fri Nov 19 01:13:41 1982

It is true that nowadays "X" is an abbreviation for "trans," but using
the "X" for Christ is an ancient Christian practice. "Xp" (the nearest
I  can come to the Greek lettering) is a symbol for Christ found in the
architecture and fittings of many liturgical churches.  The "fish"
acronym, using the chi-rhp symbols is also seen on religious jewelry
(as well as on the altar screen of our Episcopal Church).
They were talking about other things besides Xmtrs, Xfmrs and Xstrs.