Octāvius, i, m.; Octāvia, ae, f., the name of a Roman gens, Suet. Aug. 1 sq.; cf. Drumann, History of Rome, vol. iv. p. 218 sq. C. Octavius, the father of the emperor Augustus, Cic. Att. 2, 1, 12; id. Phil. 3, 6, 15.
— Cn. Octavius, the first consul of this gens, Cic. Off. 1, 39, 138.
— M. Octavius Caecina, a tribune of the people, Cic. N. D. 1, 38, 106.
— Rarely of the emperor Augustus, Juv. 8, 242.
— In the fem., Octavia, the name of the two sisters of the emperor Augustus, Suet. Aug. 4; 63; Tac. A. 4, 44.
— Octavia was also the name of the daughter of the emperor Claudius and Messalina, Suet. Claud. 27; id. Ner. 7.
— Octaviae Porticus, two halls in Rome, Vell. 1, 11; 2, 1; Suet. Aug. 29; Paul. ex Fest. p. 178 Mull.
—Hence, Octāviānus, a, um, adj., of or belonging to an Octavius, Octavian: Octaviano bello, i. e. in the war of the consul Cn. Octavius with Cinna, Cic. Div. 1, 2, 4: milites, of M. Octavius, who fought for Pompey, Caes. B. C. 3, 9.
—Esp., subst.: Octāviānus, i, m., a surname of the emperor Augustus, who was adopted out of the gens Octavia into the gens Julia, Cic. Fam. 12, 25, 4; Tac. A. 13, 6; Aur. Vict. Vir. Ill. 79, 1; id. Caes. 1, 2.