December definition
The 12th month of the year in the Gregorian calendar.
noun
The twelfth and last month of the year, having 31 days: abbrev. Dec. or D.
noun
Other Word Forms
Noun
Singular:
december
Plural:
decembersOrigin of december
-
From American Heritage Dictionary of the English Language, 5th Edition
- From Middle English decembre, from Old French decembre, from Latin december (“tenth month”), from Latin decem (“ten”), from Proto-Indo-European *dekm, ten; December was the tenth month in the Roman calendar.
From Wiktionary