Witch Troll
Not independently attested in Nordic tradition as a named hybrid being. Nordic folklore has trolls (trold, jätte) and witches (hejre, klok gumma) as distinct categories; snip 'witch-troll' is a modern descriptive conflation. The closest analogues are trollkonor (troll-wives) who practice magic, or the Finnish hiisi beings blending troll and sorcerer traits.