'Jacob Grimm states that Dellingr is the assimilated form of "Deglingr", which includes the name of Dellingr's son Dagr.Grimm adds that if the "-ling" likely refers to descent, and that due to this Dellingr may have been the "progenitor Dagr before him" or that the succession order has been reversed, which Grimm states often occurs in old genealogies.