What does Arisba mean in Latin?

Arisba, a proper noun, means “a town in Mysia situated on the road from Percote to Abydus”.

What is the genitive of Arisba?

The genitive singular is Arisbae. Arisba is feminine, first declension.

proper noun · femininefirst declension

Arisba f sg (genitive Arisbae)

Ărisba, ae, or -ē, ēs, f., = Ἀρίσβη.

I. A town in Troas, Verg. A. 9, 264; Plin. 5, 30, 33, § 125.—

II. A town in the island of Lesbos, Mel. 2, 7; Plin. 5, 31, 39, § 139.

Borrowed from Ancient Greek Ἀρίσβη (Arísbē).