Seems to be a contraction of an original *ὀποσάρα (*oposára), from Proto-Indo-European *h₁eser, a variant of *h₁esen. Cognates include Russian о́сень (ósenʹ), Gothic 𐌰𐍃𐌰𐌽𐍃 (asans), and Old English earnian (English earn).
- the part of the year between the rising of Sirius and of Arcturus (i. e. the end of July, all August and part of September), the end of summer; later it was used for autumn
- since it was the fruit-time, it came to mean the fruit itself
- (figuratively) summer-bloom; i.e. the bloom of youth
- ὀπώρα in Liddell & Scott (1940) A Greek–English Lexicon, Oxford: Clarendon Press
- ὀπώρα in Liddell & Scott (1889) An Intermediate Greek–English Lexicon, New York: Harper & Brothers
- «ὀπώρα» in Bailly, Anatole (1935) Le Grand Bailly: Dictionnaire grec-français, Paris: Hachette
- ὀπώρα in Slater, William J. (1969) Lexicon to Pindar, Berlin: Walter de Gruyter
- “G3703”, in Strong’s Exhaustive Concordance to the Bible, 1979
- Woodhouse, S. C. (1910) English–Greek Dictionary: A Vocabulary of the Attic Language, London: Routledge & Kegan Paul Limited.