Lewis & Short

Ā̆rabs, ăbis, adj. (acc. Gr. Arabas, Ov. M. 10, 478), = Ἄραψ, proceeding from Arabia, Arabian: pastor Arabs, Prop. 4, 12, 8: messor Arabs, Mart. 3, 65, 5.
Hence, subst., an Arab, Arabian: Eoi Arabes, Tib. 3, 2, 24: Eoae domus Arabum, Verg. G. 2, 115; Vulg. 2 Par. 17, 11; ib. Act. 2, 11.
Meton., for Arabia: palmiferos Arabas, Ov. M. 10, 478.