Sumarsveinsson
nafnorð karlkyn Föðurnafn
Fallbeygingar
Eintala
nefnifall
Sumarsveinsson
þolfall
Sumarsveinsson
þágufall
Sumarsveinssyni
eignarfall
Sumarsveinssonar
Fleirtala
nefnifall
Sumarsveinssynir
þolfall
Sumarsveinssyni
þágufall
Sumarsveinssonum
eignarfall
Sumarsveinssona