and — de Vaan
and 'spring' are inherited IE words in Latin, a foreign origin of autumnus is conceivable, since we cannot reconstruct a PIE word for 'autumn'; cf. Mallory-Adams 1997: 504. Bibl.:WHI:87f.,EM61. + + auturoO, -Sre 'to allege, say' [v. I] (PL+) Maybe derived from autem, as negd from nee. The word died out at the end of the Republic. See Ernout 1937 for the meaning of the word. Bibl: WH I: 88, EM 61. — [de Vaan, s.v. and, p. 78]