Þorbjörnnafnorð karlkyn · Íslenskt mannsnafnFallbeygingarEt.eintalaFt.fleirtalaEintalaNf.nefnifallÞorbjörnÞf.þolfallÞorbjörnÞgf.þágufallÞorbirniEf.eignarfallÞorbjörnsÞorbjarnar