Where does “Helle” come from?

Helle (Norwegian) comes from Danish Helle, from Danish Helga, from Old Norse helga, from Old Norse heilagr, from Proto-Germanic hailagaz, from Proto-Germanic hailaz, from Proto-Indo-European *kéh₂ilos — healthy.

Ancestry of “Helle”, step by step

StepLanguageWordMeaning
1DanishHelle—
2DanishHelga—
3Old Norsehelgato hallow; to be sanctified; strong feminine...
4Old Norseheilagrholy; inviolable, sacred
5Proto-Germanichailagazholy, sacred
6Proto-Germanichailazwhole, unbroken, intact; entire, complete; hale,...
7Proto-Indo-European*kéh₂iloshealthy
Every word from Proto-Indo-European *kéh₂ilos →Every word from Proto-Germanic hailaz →Every word from Proto-Germanic hailagaz →