Our new 'Word Of The Day' article update : Twelfthtide , proper n :
(archaic or obsolete) The season including Epiphany (the twelfth day after Christmas) and the evening of the preceding day (Twelfth Night), regarded as the end of the Christmas season; Epiphany itself. In Western Christianity, today is Epiphany, which commemorates the visit of the Magi to the Christ child.