 Rogaland translates "Land of the Rygir" (Rugii), the transition of "rygir" to "roga" being sufficiently explained with the general linguistic transitions of the Norse language.Scholars suggest a migration either of Rogaland Rugii to the southern Baltic coast, a migration the other way around, or an original homeland on the islands of Denmark in between these two regions.None of these theories is so far backed by archaeological evidence.