Etymology

From Proto-Germanic *tungǭ, from Proto-Indo-European *dn̥ǵʰwéh₂s.

Germanic cognates: Old English tunge, Old Frisian tunge, Old Saxon tunga, Old Dutch tunga, Old High German zunge, Old Norse tunga.

Indo-European cognates: Sanskrit जिह्वा ‎(jihvā), Old Latin dingua (Latin lingua), Avestan 𐬵𐬌𐬰𐬬𐬁 ‎(hizvā), Old Church Slavonic ѩзꙑкъ ‎(językŭ), Lithuanian liežùvis, Old Irish tengae, Welsh tafod), Tocharian A Tocharian A käntu.