Where does “nisse” come from?

nisse (Norwegian Bokmål) comes from Danish nisse, from Danish Niels, from Latin Nīcolāus, from Ancient Greek Νικόλαος, from Ancient Greek λᾱός, from Proto-Hellenic lāwós, from Proto-Indo-European leh₂wos, from Proto-Indo-European leh₂- — to bark, howl; to be concealed.

Ancestry of “nisse”, step by step

nisse traces back through two separate lines of ancestry.

via Danish nisse

StepLanguageWordMeaning
1DanishnisseA small mythological being living in farmsteads;...
2DanishNielsNicholas
3LatinNīcolāus
4Ancient GreekΝικόλαοςNicolas
5Ancient Greekλᾱόςpeople; men; the people
6Proto-Helleniclāwóspeople, crowd
7Proto-Indo-Europeanleh₂wospeople
8Proto-Indo-Europeanleh₂-to bark, howl; to be concealed

via Swedish Nisse

StepLanguageWordMeaning
1SwedishNisserecorded since the Middle Ages
2SwedishNils

Words derived from “nisse

Every word from Proto-Indo-European leh₂-
nisse — Etymology, Origin & Word History | Etymology Explorer