Arpīnum, i, n.,
I a town in Latium , the birthplace of Cicero and Marius , now Arpino , Cic. Att. 2, 8; cf. Mann. Ital. I. 676.— Hence,
II Derivv.:
A Arpīnas , ātis (nom. Arpinatis, Cato ap. Prisc. p. 629 P.; cf. Ardeatis), adj., of or pertaining to Arpinum : fundus, Cic. Agr. 3, 2, 8: aquae, id. Att. 1, 16: iter, id. ib. 16, 13.—Subst.: Ar-pīnātes , ium, m., the inhabitants of Arpinum , Cic. Off. 1, 7, 21; so id. Att. 4, 7; 15, 15; so also Inscr. Orell. 571 (cf. Cic. Fam. 13, 11); Plin. 3, 5, 9, § 63: Arpinas (per antonomasiam) for Cicero , Symm. Carm. Ep. 1, 1; and for Marius , the countryman of Cicero (cf. Arpinum), Sid. Carm. 9, 259.—
B Arpīnus , a, um, adj., of Arpinum : chartae, i. e. Cicero's , Mart. 10, 19.