I.name of a Roman gens.—So, esp.: “Petronius Arbiter,” a Roman knight, a favorite of the emperor Nero, perh. the same person with Petronius, the author of a Latin romance which is preserved in a fragmentary state, Tac. A. 16, 17 sq.—In fem.: Pē^trōnĭa , ae, the first wife of the emperor Vitellius, Tac. H. 2, 64; Suet. Vit. 6.—Hence,
A. Pē^trōnĭus , a, um, adj., of or belonging to a Petronius, Petronian: Petronia amnis est in Tiberim profluens, quam magistratus auspicato transeunt, cum in campo quid agere voluntquod genus auspicii peremne vocatur, Fest. p. 250 Müll.: “Petronia lex, respecting slaves: post legem Petroniam et senatusconsulta ad eam legem pertinentia, dominis, potestas ablata est ad bestias depugnandas suo arbitrio servos tradere,” Dig. 48, 8, 11, § 3; ib. 40, 1, 24.—