brumknappur
nafnorð karlkyn
Beyging
eintalafleirtala
án greinismeð greinián greinismeð greini
nf.brumknappurbrumknappurinnnf.brumknapparbrumknapparnir
þf.brumknappbrumknappinnþf.brumknappabrumknappana
þgf.brumknappibrumknappinumþgf.brumknöppumbrumknöppunum
ef.brumknappsbrumknappsinsef.brumknappabrumknappanna