heithugi
nafnorð karlkyn
Beyging
eintalafleirtala
án greinismeð greinián greinismeð greini
nf.heithugiheithuginnnf.heithugarheithugarnir
þf.heithugaheithugannþf.heithugaheithugana
þgf.heithugaheithuganumþgf.heithugumheithugunum
ef.heithugaheithugansef.heithugaheithuganna