Definify.com
Webster 1913 Edition
Nowel
1. 
Christmas; also, a shout of joy at Christmas for the birth of the Savior. 
[Obs.] 
2. 
(Mus.) 
A kind of hymn, or canticle, of mediaeval origin, sung in honor of the Nativity of our Lord; a Christmas carol. 
Grove.
 Webster 1828 Edition
Nowel
NOW'EL
,Noun.