The abbreviation Xmas for Christmas dates from the mid 16th century. The X is the Greek letter chi, the initial letter in the word Χριστός ( Chrīstos ) “Christ.”
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AL_COCWATCH
The abbreviation Xmas for Christmas dates from the mid 16th century. The X is the Greek letter chi, the initial letter in the word Χριστός ( Chrīstos ) “Christ.”