Decem-ber

According to the Old English Dictionary:

Decem-ber

gen. -bris; m. [dĕcem ten: Sansk. vāra: Pers. bār time, space: the tenth month of the Romans, beginning with March, and as we begin with January, it is our twelfth month] The month of December; Dĕcember, bris, m :-- Mónaþ Decembris, ǽrra iúla [geóla] the month of December, the former yule, Menol. Fox 437; Men. 220; January being after yule or Christmas is called Se æftera geóla; the after yule, Cott. Tibĕrius; B. i; Hick. Thes. i. 212, 57. decem-ber