Seifsdóttirnafnorð kvenkyn · FöðurnafnFallbeygingarEt.eintalaFt.fleirtalaEintalaNf.nefnifallSeifsdóttirÞf.þolfallSeifsdótturÞgf.þágufallSeifsdótturEf.eignarfallSeifsdótturFleirtalaNf.nefnifallSeifsdæturÞf.þolfallSeifsdæturÞgf.þágufallSeifsdætrumEf.eignarfallSeifsdætra