Alvíss (Old Norse: [ˈɑlˌwiːsː]; "All-Wise") was a dwarf in Norse mythology.^[1]

In the "Alvíssmál" poem within the 12th century Poetic Edda, Thor's daughter, Þrúðr, was promised in marriage to Alvíss. Thor was unhappy with the match, however, so he devised a plan: Thor told Alvíss that, because of his small height, he had to prove his wisdom. Alvíss agreed, but Thor made his tests last until dawn, when Alviss, because he was a dwarf, was petrified on being exposed to the sunlight.^[1]

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