That was done long ago: "Xmas"
I'm having my staff Christmas party TONIGHT!!!
My company has decided to take Christmas out of December! ;-)
...but they'll just say, "Oh, we needed to shorten the word for shorter headlines/save space"
(radio announcer doing ad): "Yes, Mother, as sure as there's an X in 'X-mas', you can bet
those are Tiny Tim chestnuts roasting. Tin-y Tim's roast
hot--like a chesnut ought!"--from Stan Freberg's
"Green Chri$tma$"
And if people are trying to take the "Christ" out of "Christmas" (literally), then they should also remove the "-mas," since it refers to the "Christ Mass," that is, the Festival (the Feast, the Mass) of the Nativity of Our Lord.
Likewise, "holiday" equals "holy day," a day set apart unto the Lord.
Of course, nobody knows these things anymore. We are so ignorant of our language and our history. In Western Civilization, history is thoroughly intertwined with church history.