Lewis Short
(adjective) : Amastris, is, f., = Ἄμαστρις
* A town in Paphlagonia, on the shore of the Pontus Euxinus, orig. called Sesamum, now Amasserah, Cat. 4, 13; Plin. 6, 2, 2, § 5; cf. Mann. Asia Minor, 3, 25 sq.—Hence, Amastrĭă-cus, a, um, , of Amastris, Ov. Ib. 331.— Amastrĭāni, ōrum, m., the inhabitants of Amastris, Plin. Ep. 10, 99.
Charlton T. Lewis, Charles Short, A Latin Dictionary