Petrēĭus, i, m.,
I name of a Roman gens. —So, esp, a lieutenant of Pompey in the civil war , Caes. B. C. 1, 38; 63; cf. Cic. Att. 8, 2, 3. He is probably the same person with M. Petrejus , lieutenant of the consul C. Antonius , who defeated the followers of Catiline at Faesulae , A. U. C. 692; Cic. Sest. 5, 12; Sall. C. 59, 5 sq.—Hence,
A Petrēius , a, um, adj., Petreian; here prob. belongs: petreia vocabatur, quae pompam praecedens in coloniis aut municipiis imitabatur anum ebriam, ab agri vitio, scilicet petris, appellata, Paul. ex Fest. p. 243, 5 Müll.; cf. Fest. p. 242, 14 ib.—
B Petrēiānus , a, um, adj., of or belonging to Petreius , Petreian : auxilium, Auct. B. Afr. 19.