Definify.com

Definition 2025

autumnus

autumnus

Latin

Alternative forms

Noun

autumnus m ‎(genitive autumnī); second declension

autumn, fall

Inflection

Second declension.

Case	Singular	Plural
nominative	autumnus	autumnī
genitive	autumnī	autumnōrum
dative	autumnō	autumnīs
accusative	autumnum	autumnōs
ablative	autumnō	autumnīs
vocative	autumne	autumnī

Adjective

autumnus m ‎(feminine autumna, neuter autumnum); first/second declension

autumn (attributive), autumnal

Inflection

First/second declension.

Case / Gender	Masculine	Feminine	Neuter		Masculine	Feminine	Neuter
Number	Singular				Plural
nominative	autumnus	autumna	autumnum		autumnī	autumnae	autumna
genitive	autumnī	autumnae	autumnī		autumnōrum	autumnārum	autumnōrum
dative	autumnō	autumnae	autumnō		autumnīs
accusative	autumnum	autumnam	autumnum		autumnōs	autumnās	autumna
ablative	autumnō	autumnā	autumnō		autumnīs
vocative	autumne	autumna	autumnum		autumnī	autumnae	autumna

Descendants

Aromanian: toamnã
Asturian: otoñu
Dalmatian: autun
English: autumn
French: automne
Friulian: autun, atom
Galician: outono
Italian: autunno

Occitan: auton
Portuguese: outono
Romanian: toamnă
Romansch: atun, utuon
Sardinian: atognu, atongiu, atonzu
Sicilian: autunnu, otunnu
Spanish: otoño
Venetian: utuno, otuno

References

autumnus in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
AUTUMNUS in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition, 1883–1887)