helstormur
nafnorð karlkyn
Beyging
eintalafleirtala
án greinismeð greinián greinismeð greini
nf.helstormurhelstormurinnnf.helstormarhelstormarnir
þf.helstormhelstorminnþf.helstormahelstormana
þgf.helstormihelstorminumþgf.helstormumhelstormunum
ef.helstormshelstormsinsef.helstormahelstormanna