Bŏrysthĕnes — Lewis & Short
Bŏrysthĕnes, is, m., = *borusqe/nhs,
I a large but gently-flowing river in Sarmatia, which empties into the Black Sea, now the Dnieper, Mel. 2, 1, 6; 2, 7, 2; Curt. 6, 2, 13; Plin. 4, 12, 26, § 82 sq.; Gell. 9, 4, 6.—
II Derivv.
A Bŏrysthĕnĭus, a, um, adj., pertaining to the Borysthenes: amnis, poet. circumlocution for Borysthenes, Ov. P. 4, 10, 53.—
B Bŏrysthĕnis, ĭdis, f., adj., = *borusqeni/s, the same: ora, Calvus ap. Val. Prob. p. 1395 P.—And subst.: Bŏry-sthĕnis, ĭdis, f., a town on the Borysthenes, previously called Olbia, a colony from Miletus, now Kudak, in the region of the present Oczakow, or of Nikolajew, Mel. 2, 1, 6 (here erroneously distinguished from Olbia).—
C Bŏrysthĕnĭdae, ārum, m., the dwellers on or near the Borysthenes:
hiberni,Prop. 2, 7, 18.—
D Bŏrysthĕ-nītae, ārum, = *borusqeni=tai, the same, Macr. S. 1, 11, 33.