Lewis Short
(adj.adj.) : Arpi, ōrum, m.
* A city in Apulia, earlier called Argyripa (q. v.), now Arpa, Plin. 3, 11, 16, § 104; cf. Mann. Ital. II. 82 sq.— Hence
* Derivv.:
* Arpīnus, a, um, adj., of or from Arpi: Dasius Altinius Arpinus,Liv. 24, 45; Arpīni, ōrum, m., the inhabitants of Arpi, id. 24, 47.
* Ar-pānus, a, um, adj., pertaining to Arpi, Front. Col.; Arpāni, ōrum, m., the inhabitants of Arpi, Plin. 3, 11, 16, § 103.
Charlton T. Lewis, Charles Short, A Latin Dictionary