Xmas

Xmas is a common abbreviation of the word Christmas . It is sometimes pronounced s, but it, and variants such as Xtemass, originated as handwriting abbreviations for the typical pronunciation s. The `-mas` part is from the Latin-derived Old English word for Mass, while the `X` comes from the Greek letter Chi, which is the first letter of the G...
Found on http://en.wikipedia.org/wiki/Xmas

Xmas

A period of time when security is almost non-existent, when epic sites get cracked and busted (see epic, cracked, busted).
Found on https://www.versobooks.com/blogs/1715-urban-exploration-a-glossary

Xmas

Abbreviation or informal term for Christmas.
Found on http://www.encyclo.co.uk/local/22423

xmas

christmas
Found on http://www.noslang.com/dictionary/x/

Xmas

Xmas (Greek) An abbreviation of Christmas. This is one of the oldest informalities of the English language. In its Old English form, it occurs in the Anglo-Saxon Chronicle. The 'X' stands for the Greek letter chi, the initial in the name Xristos (Khristos equals Christ). In Latin manuscripts, Christus was often abbreviated by using the...
Found on http://www.wordinfo.info/words/index/info/view_unit/3485/
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