sumarengi
nafnorð hvorugkyn
Beyging
eintalafleirtala
án greinismeð greinián greinismeð greini
nf.sumarengisumarengiðnf.sumarengisumarengin
þf.sumarengisumarengiðþf.sumarengisumarengin
þgf.sumarengisumarenginuþgf.sumarengjumsumarengjunum
ef.sumarengissumarengisinsef.sumarengjasumarengjanna