I.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 (correctly aut- ), a, um, adj. 1. auctumnus,