þúfnahey
nafnorð hvorugkyn
Beyging
eintalafleirtala
án greinismeð greinián greinismeð greini
nf.þúfnaheyþúfnaheyiðnf.þúfnaheyþúfnaheyin
þf.þúfnaheyþúfnaheyiðþf.þúfnaheyþúfnaheyin
þgf.þúfnaheyiþúfnaheyinuþgf.þúfnaheyjumþúfnaheyjunum
ef.þúfnaheysþúfnaheysinsef.þúfnaheyjaþúfnaheyjanna