(adjective) : auctumnus (correctly aut-), a, um, 1. auctumnus
* Autumnal (poet. or in post-Aug. prose): imber,Cato, R. R. 58: autumno frigore,Ov. M. 3, 729 (Merk., autumni frigore): sidera,Manil. 2, 269: tempus,id. 2, 425: pruinae,Aus. Idyll. 8, 10; Cod. Th. 2, 8, 2: aequinoctium,Plin. 19, 6, 33, § 108: tempestas,Gell. 19, 7, 2.

auctumnus | aut-, i | autumnum (noun M.n) : (correctly ), , m. (, , n., Varr.ap.Non.p.71, 20). [This word was anciently referred to augeo, as the season of
* Increase, as by Paul. ex Fest. p. 23, 11 Müll.; so Curtius. But Corssen and others, in view of its correct form, autumnus, refer it to the Sanscr. av, to do good to, to satisfy one's self; cf. the Gr. ἐνηνής (i.e. ἐνηϝής), good, kindly, and 2.aveo, to be well.] The season of abundance, the autumn.
* Lit. (from the 22d of September to the 22d of December; acc. to the designation of the ancients, from the entering of the sun into Libra until the setting of the Pleiades, comprising 91 days,Varr. R. R. 1, 28): quae temporis quasi naturam notant, hiems, ver, aestas, autumnus,Cic. Part. Or. 11: Vites autumno fundi suadente videmus,Lucr. 1, 175: Inde autumnus adit,id. 5, 743: pomifer,Hor. C. 4, 7, 11: varius purpureo colore,id. ib. 2, 5, 11: sordidus calcatis uvis,Ov. M. 2, 29: letifer, sickly (on account of the diseases that prevail in autumn), Juv. 4, 56: sub autumno,Ov. A. A. 2, 315: autumno adulto,about the middle of autumn,Tac. A. 11, 31: vergente,drawing to a close,id. ib. 11, 4: flexus autumni,id. H. 5, 23 al.—In plur.: Frustra per autumnos nocentem Corporibus metuemus Austrum,Hor. C. 2, 14, 15; Ov. M. 1, 117; 3, 327.—*
* Meton., the produce of the autumn, the harvest: et multa fragrat testa senibus autumnis, i. e. vino vetere,Mart. 3, 58, 7.