Old Irish dorus

← Old English duru (cognate)

← Old English dor (mention)

← Proto-Celtic *dworestus (inherited)

← Old Church Slavonic двьри (cognate)

← English door (cognate)

← Ancient Greek θύρα (cognate)

← Proto-Indo-European *dʰwer- (root)

← Proto-Indo-European *dʰwer- (derived)

← Latin foris (cognate)

← Latin forum (mention)

← Sanskrit द्वार् (cognate)

→ Welsh drws (cognate)

→ Irish doras (inherited)

→ Scottish Gaelic doras (inherited)

→ Manx dorrys (inherited)

→ Middle Irish dorus (inherited)