Steinborgarson
nafnorð karlkyn Móðurnafn
Fallbeygingar
Eintala
nefnifall
Steinborgarson
þolfall
Steinborgarson
þágufall
Steinborgarsyni
eignarfall
Steinborgarsonar
Fleirtala
nefnifall
Steinborgarsynir
þolfall
Steinborgarsyni
þágufall
Steinborgarsonum
eignarfall
Steinborgarsona