Lewis Short
(adjective) : prīdĭānus, a, um, pridie
* Of or belonging to the day before, that happened, was used, eaten, etc., the day before, yesterday's (post-Aug.): pridiana ac semesa opsonia apposuit,Suet. Tib. 34; id. Vit. 13: cibus,id. Calig. 58: balinea,Plin. 28, 19, 77, § 248: reliquiae, Cat. ap. App. Mag. p. 277, 13: pluvia,App. M. 7, p. 196, 34: pruina,id. ib. 11, p. 260, 19.
Charlton T. Lewis, Charles Short, A Latin Dictionary