infest Copy link Outline 1. expr. by infestus (hostile, dangerous) and a verb2. infesto, 1 (to render unsafe • infest: 1. expr. by infestus (hostile, dangerous) and a verb: the forest has been more and more i.'d by banditti, saltus frequentioribus latrociniis infestior factus est, C. Asin. in Cic. Fam. 10, 31: so, [mare, etc.] infestum habere, Cic. Rep. 3, 12: Liv. 2. infesto, 1 (to render unsafe: not in Cic.): to i. the sea by piracy, mare inf. piraticis sceleribus, Vell. 2, 73: used by Col. of tumours attacking cattle, Col. 6, 14, fin.: Plin.: cf. foll. art.