why do we say merry xmas

"Merry Christmas" is a traditional greeting used during the holiday season, usually from the end of November until the beginning of January. The phrase "Merry Christmas" is a shortened version of the more traditional phrase "May you have a merry Christmas and a happy New Year." It's a way to express good wishes and happiness during this festive time of year. The word "merry" refers to joy, celebration, and cheer, which are all common themes associated with Christmas. The phrase "Merry Christmas" has become a ubiquitous part of Christmas culture and is used by people of all backgrounds and beliefs.