45%RatingSave Gender Feminine Usage Norwegian, Norse Mythology Meaning & History Derived from the Old Norse elements borg "fortress" and hildr "battle". In the Norse Völsungasaga she is the wife of Sigmund. Related NamesFamily Tree·Details Rootsborg + hildrVariantBorghildr(Norse Mythology) Other Languages & CulturesBorghildur(Icelandic) Borghildr(Old Norse) People think this name isRate·Details classic mature formal upper class natural strong rough strange complex serious Name DaysName Days? Norway: December 2Sweden: May 28 Categories defence, isograms, mythology, structures, war, wives