sumartungl
nafnorð hvorugkyn
Fallbeygingar
Eintala
eintala með greini
nefnifall
sumartungl
sumartunglið
þolfall
sumartungl
sumartunglið
þágufall
sumartungli
sumartunglinu
eignarfall
sumartungls
sumartunglsins
Fleirtala
fleirtala með greini
nefnifall
sumartungl
sumartunglin
þolfall
sumartungl
sumartunglin
þágufall
sumartunglum
sumartunglunum
eignarfall
sumartungla
sumartunglanna