LATIN DICTIONARYLexicon Latīnum
English → Latin

“autumn” in Latin

The English word autumn itself goes back to Latin autumnō, through autumnus.

Riddle & Arnold A Copious and Critical English–Latin Lexicon, 1864

autumn
auctumnus: tempus auctumnale: to be passing into autumn (of summer), auctumnescere (Marc. Cap.): to cause or produce autumn, auctumnare (Plin.).
As adj., see next word.
The autumn of life, aetas gravior or grandior.

Quick answer

What is the Latin word for autumn?
The usual Latin words for “autumn” are autumnus, grandis. The right choice depends on the sense; see the distinctions below.

Entry from J. E. Riddle & T. K. Arnold, A Copious and Critical English–Latin Lexicon (rev. C. Anthon, New York: Harper, 1864), digitised by Fergus J. P. Walsh, CC BY-SA 4.0; Latin markup adapted by latindictionary.co.