Common Germanic *daubhaz, from Indo-European *dheubh- (“‘smoky, foggy, dim’”). Germanic cognates include Old Frisian dāf, Old Saxon dōf (Dutch doof), Old High German toub (German taub), Old Norse daufr (Swedish döv). The IE root is also the source of Greek τυφλός (“‘blind’”).
Common Germanic *daubhaz, from Indo-European *dheubh- (“‘smoky, foggy, dim’”). Germanic cognates include Old Frisian dāf, Old Saxon dōf (Dutch doof), Old High German toub (German taub), Old Norse daufr (Swedish döv). The IE root is also the source of Greek τυφλός (“‘blind’”).