yesterday (subs.) Copy link • yesterday (subs.): hesternus dies: the discussion of y. and to-day, hesterni atque hodierni diei disputatio, Cic. de Or. 3., 21, 81. Phr.: of y.: hesternus: the conversation of y., h. sermo, Cic. Rep. 3, 12., 21: the night of y. (yesternight), h. nox, Ov. H. 19, 72: the day before y., nudius tertius, Cic. Att. 14, 11.