Viktor Rydberg,
Teutonic Mythology: Gods and Goddesses of the Northland…
“ Volund is called Brunni. (12) Idun has the epithet Snót (Younger Edda, 306) , "the wise one," "the intelligent one." Volund's swan-maid has the epithet Alvitr, "the much-knowing one," "the very intelligent one" (Volundarkvida, 1) . [Pg 899] Volund has the epithet Ásólfr (Hyndluljod; cp. No. 109) . Thjasse has the epithet Fjallgylder (Younger Edda, 308) , which is a paraphrase of Ásólfr (áss = fjöll, olfr = gyldir) . (13) One of Volund's brothers, namely Orvandel-Egil, had the epithet "Wild boar" (Ibor, Ebur) . One of Thjasse's brothers is called Urnir, Aurnir. This name means "wild boar." ”
