in-frēno (infraen-), āvi, ātum, 1, v. a., to put on a bridle.
I Lit., to furnish with a bridle , to bridle : equos, Liv. 37, 20, 12; cf.: non stratos, non infrenatos equos habere, ib. § 4: currus, to harness the horses to a chariot , Verg. A. 12, 287: infrenati manipli, on bridled horses , Sil. 4, 316.—
II Transf., to curb , restrain : horum (ducum) alterum sic fuisse infrenatum conscientia scelerum, Cic. Pis. 19, 44: navigia ancoris, Plin. 9, 31, 51, § 100: infrenat impetus et domat mundi rabiem, id. 32, 1, 1, § 2: lascivias carnis, Ambros. in Luc. 9, § 8.