I.sour, tart, acid.
I. Lit.: “sapor,” Plin. 15, 27, 32, § 106; “sorba,” Verg. G. 3, 380: “inula,” Hor. S. 2, 2, 43: “lac,” Plin. 28, 9, 36, § 135: “caseus,” ib. 9, 34, § 132: “acidissumum acetum,” Plaut. Ps. 2, 4, 49.—
B. Transf.
1. Like acer, from taste to sound, harsh, rough, shrill: “sonus acidior,” Petr. 68; cf. “canticum,” ib. 31.—
2. Acida creta, chalk steeped in vinegar, Mart. 6, 93.—
II. Fig., sharp, keen, pungent: “homo acidae linguae,” Sen. Contr. 5, 34; cf. Quint. 6, 3, 53: “quod petis, id sane est invisum acidumque duobus,” unpleasant, disagreeable, Hor. Ep. 2, 2, 64.—Adv.: ăcĭde , bitterly, disagreeably: “non acide feras,” Vulg. Ecclus. 4, 9.—Comp.: “sibi acidius fuit,” Petr. S. 92.
