Where does “Heil” come from?

Heil (German) comes from Middle High German heil, from Old High German heil, from Proto-West Germanic hail, from Proto-Germanic hailaz, from Proto-Indo-European *kéh₂ilos — healthy.

Heil (German): health, salvation, well-being, happiness, a state...

Definitions

health, salvation, well-being, happiness, a state...

Ancestry of “Heil”, step by step

Step	Language	Word	Meaning
1	Middle High German	heil	—
2	Old High German	heil	whole; luck
3	Proto-West Germanic	hail	healthy, sound; whole; omen, portent
4	Proto-Germanic	hailaz	whole, unbroken, intact; entire, complete; hale,...
5	Proto-Indo-European	*kéh₂ilos	healthy

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