Old Frisian dwa

← Old English dōn (cognate)

← Proto-Germanic *dōną (inherited)

← Proto-West Germanic *dōn (inherited)

← Proto-Indo-European *dʰeh₁- (root)

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

← Old Dutch duon (cognate)

← Old Saxon dōn (cognate)