Germanic cognates: Old Frisian ei, Old Saxon ewwi, Old High German ouwi (German Aue), Old Norse ær, Gothic 𐌰𐍅𐌴𐌸𐌹(aweþi, “flock of sheep”).
Indo-European cognates: Luvian hawi-, Latin ovis, Ancient Greekὄϊς(óïs), Old Church Slavonic овьца(ovĭca) (Russian овца(ovca)), Old Irish ói, Lithuanian avìs, Tocharian B ā(u)w.