Lewis Short
(adjective) : Bostra, ae, f., = Βόστρα
* The capital of the Roman province of Arabia from the time of Trajan, now Bozra, Amm. 14, 8, 13. —Called Bosra, Vulg. Isa. 34, 6; id. Jer. 48, 24 al.—Hence, Bostrēnus, a, um, , of Bozra.—Only subst.: Bostrēnus, i, m., an inhabitant of Bozra: praetextatus,Cic. Q. Fr. 2, 12, 3; plur., Inscr. Orell. 3440.
Charlton T. Lewis, Charles Short, A Latin Dictionary