No. Not as far as I know. Xmas is short for Christmas.
Yes it is
greek is the origin of oceanography
lahar is the term for mass movement that is volcanic in origin
The term is etymology.
If you believe in Santa then he delivers them on Xmas Eve and you open them on Xmas Day, if not it should get to your home on Xmas Eve and you open them on Xmas Day.
Father Xmas was created in 2001.
Amrep Xmas was created in 1997.
No, Xmas was not originally used in a derogatory way. The X was used in Christian texts as a shorthand way to represent the word Christ. For more explanation please see the Related Question, below.
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Yule, Xmas
Xmas is a shortened way of writing Christmas.