A couple weeks ago I wrote about my dislike of the "Holiday Tree". Since then I've seen lots of people upset with the use of "X-mas" instead of "Christmas." I'm OK with the X. In fact I use the abbreviation all the time. I couldn't stand the abbreviation at all until I went to seminary. In the middle of class one day a proffesor abbreviated "Christian" as "Xian" and suddenly it all made sense to me. So if you don't know the origin of "X-mas", here it is:
The Greek word for Christ is Christos. If you were to write the word out it would look something like "Xpristos" (I don't know how to do Greek letters on an English keyboard, so this just approximate). The Greek r looks like an English p and the Greek "ch" looks like an English x. So X can simply be an abbreviation for Christ. Xian is Christian and Xmas is Christmas. So Merry Xmas and a happy new year!