plastnaut
nafnorð hvorugkyn
Beyging
eintalafleirtala
án greinismeð greinián greinismeð greini
nf.plastnautplastnautiðnf.plastnautplastnautin
þf.plastnautplastnautiðþf.plastnautplastnautin
þgf.plastnautiplastnautinuþgf.plastnautumplastnautunum
ef.plastnautsplastnautsinsef.plastnautaplastnautanna