“Christmas” is a compound word originating in the term “Christ‘s Mass“. It is derived from the Middle English Cristemasse, which is from Old English Crīstesmæsse, a phrase first recorded in 1038. Crīst (genitive Crīstes) is from Greek Khrīstos (Χριστός), a translation of Hebrew Māšîaḥ (מָשִׁיחַ), “Messiah“; and mæsse is from Latin missa, the celebration of the Eucharist.
December 25th was designated as the birth of Christ beginning in the 4th century, it originated as a Christian holiday celebrating the birth of Jesus, so for anyone who celebrates the holiday but refuses to acknowledge the true meaning, you call it the holiday but what holiday are you celebrating? If you don’t believe in the birth of Jesus then you have no business celebrating Christmas, or holidays as you call it, you’re lower than scum to ride on the coattails of a Christian tradition but yet deny the Christian values associated with it.