Proto-Indo-European *weydʰ-

→ English widow (mention)

→ English Gael (derived)

→ Breton Gouezel (derived)

→ Welsh Gwynedd (derived)

→ Welsh Gwyddel (derived)

→ Irish Gael (derived)

→ Lithuanian vidus (derived)

→ Old Irish Gàidheal (derived(sga/gd))

→ Old Irish Goídel (derived)

→ Old Armenian վայր (derived)