Irish doras

← Proto-Celtic *dworestus (inherited)

← Welsh drws (cognate)

← Proto-Indo-European *dʰwer- (root)

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

← Old Irish dorus (inherited)

→ English door (cognate)

→ Persian در (cognate)

→ Manx dorrys (cognate)

→ Northern Kurdish derî (cognate)

→ Ossetian дуар (cognate)