brennisteinsmengun
nafnorð kvenkyn
Beyging
eintala
án greinismeð greini
nf.brennisteinsmengunbrennisteinsmengunin
þf.brennisteinsmengunbrennisteinsmengunina
þgf.brennisteinsmengunbrennisteinsmenguninni
ef.brennisteinsmengunarbrennisteinsmengunarinnar