75%RatingSave Gender Feminine Usage Norwegian Meaning & History From the Old Norse name Hreiðunn, which was derived from the elements hreiðr "nest, home" and unnr "wave". Related NamesFamily Tree·Details Rootshreiðr + unnrOther Languages & CulturesHreiðunn(Old Norse) PopularityDetails Last ranked #99 in 1969 Norway Name DaysName Days? Norway: July 28Sweden: May 9 Categories home, structures, water