Arnarfellsbrekkanafnorð kvenkyn · ÖrnefniFallbeygingarEt.eintalaFt.fleirtalaEintalaNf.nefnifallArnarfellsbrekkaÞf.þolfallArnarfellsbrekkuÞgf.þágufallArnarfellsbrekkuEf.eignarfallArnarfellsbrekku