Ylvusonnafnorð karlkyn · MóðurnafnFallbeygingarEt.eintalaFt.fleirtalaEintalaNf.nefnifallYlvusonÞf.þolfallYlvusonÞgf.þágufallYlvusyniEf.eignarfallYlvusonarFleirtalaNf.nefnifallYlvusynirÞf.þolfallYlvusyniÞgf.þágufallYlvusonumEf.eignarfallYlvusona