1) Christmas 2) Christmas season 3) Christmastide 4) Christmastime 5) December days 6) Exclusively Anglo word 7) Exclusively Saxon word 8) Late-december period 9) Noel 10) Noel season 11) Season 12) The Christmas season 13) Time to spike the nog 14) Word with Anglo-Saxon origins 15) Word of purely Anglo origin Found on https://www.crosswordclues.com/clue/yuletide
Yuletide was the Celtic twelve-days of feasting celebrating the winter solstice practised around November/December time. The celebration was adopted and absorbed into Christian culture to form a part of the Christmas celebrations. Found on http://www.probertencyclopaedia.com/browse/D3.HTM