Calvĭsĭus, ii, m., the name of several Romans; esp., C. Calvisius Sabinus, lieutenant of Cæsar, and afterwards prœtor in Africa, Caes. B. C. 3, 34 sq.; Cic. Phil. 3, 10, 26; cf. id. Fam. 12, 25, 1.— Calvisius Sabinus, a very rich man, Sen. Ep. 27, 4; Tac. A. 13, 21; perh. the same with Calvisius, the accuser of Agrippina, Nero's mother, Tac. A. 13, 19 sqq.—Deriv.: Calvĭsĭ-ānus, a, um, adj., of or belonging to a Calvisius, Dig. 38, 5, 3; 38, 5, 5.