Where does “heiligen” come from?

heiligen (Middle High German) comes from Old High German heilagōn, from Proto-Germanic hailagōną, from Proto-Germanic hailaz, from Proto-Indo-European *kéh₂ilos — healthy.

Ancestry of “heiligen”, step by step

StepLanguageWordMeaning
1Old High Germanheilagōnto hallow, to make holy, to sanctify
2Proto-Germanichailagōnąto hallow, to make holy, to sanctify
3Proto-Germanichailazwhole, unbroken, intact; entire, complete; hale,...
4Proto-Indo-European*kéh₂iloshealthy

Words derived from “heiligen”

Every word from Proto-Indo-European *kéh₂ilos →Every word from Proto-Germanic hailaz →Every word from Proto-Germanic hailagōną →