Old Irish deug

← Proto-Celtic *dī-āti-s (derived)

← Welsh diod (cognate)

← Proto-Indo-European *dʰeh₁(y)- (derived)

← Lithuanian dažyti (cognate)

→ Welsh diod (cognate)

→ Irish deoch (inherited)

→ Scottish Gaelic deoch (inherited)

→ Manx jough (inherited)

→ Lithuanian žuvis (cognate)

→ Lithuanian dažyti (cognate)

→ Lithuanian dažai (cognate)

→ Middle Irish deog (inherited)