sumarfýll
nafnorð karlkyn
Beyging
eintalafleirtala
án greinismeð greinián greinismeð greini
nf.sumarfýllsumarfýllinnnf.sumarfýlarsumarfýlarnir
þf.sumarfýlsumarfýlinnþf.sumarfýlasumarfýlana
þgf.sumarfýlsumarfýlnumþgf.sumarfýlumsumarfýlunum
ef.sumarfýlssumarfýlsinsef.sumarfýlasumarfýlanna