A / ăcerbo
verb transitive

ăcerbo

2nd PP ăcerbāre · 3rd PP ăcerbāvi · 4th PP ātum · conj. 1st
id. (vox Vergil.).
To make harsh; bitter; to embitter;
To make harsh or bitter, to embitter; lit. and trop. (very rare): gaudia, Stat. Th. 12, 75: mortem, Val. Fl. 6, 655.— Hence in an extended sense,
To augment; aggravate any thing disagreeable
To augment or aggravate any thing disagreeable (cf. acuo): formidine crimen acerbat, Verg. A. 11, 407: nefas Eteoclis, Stat. Th. 3, 214.