December

/di sem"beuhr/, n.

the twelfth month of the year, containing 31 days. Abbr.: Dec.

[bef. 1000; ME decembre < OF < L december (s. decembr-) the tenth month of the early Roman year, appar. < *dec(em)-membri-, equiv. to decem TEN + *-membri- < mens- month + -ri- suffix (with -sr- > -br- and assimilation of nasal)]

* * *

▪ month

 twelfth month of the Gregorian calendar. Its name is derived from decem, Latin for “ten,” indicating its position in the early Roman calendar.

* * *