The term 'Deck the Halls' is a traditional Christmas CAROL that dates back to the 19th century. The crossword solutions for this term are CAROL (5 letters), LAS (3 letters), FALALA (6 letters), TIS (3 letters), ADORN (5 letters), HOLLY (5 letters), DON (3 letters), and FESTOON (7 letters). CAROL is a song of joy, Las is a Spanish word meaning 'the', Falala is an exclamation of joy, Tis is a contraction of 'it is', ADORN means to decorate, HOLLY is a type of evergreen shrub, DON is a Spanish title of respect, and FESTOON is to decorate with chains or garlands.