Where does “Heilbronn” come from?

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

Ancestry of “Heilbronn”, step by step

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

Heilbronn — Etymology, Origin & Word History | Etymology Explorer