Where does “vitiligo” come from?

vitiligo (French) comes from Latin vitilīgō, from Latin vitium, from Proto-Indo-European wi-tio-, from Proto-Indo-European wei — guilt, vice, fault.

vitiligo (French): vitiligo

Definitions

Step	Language	Word	Meaning
1	Latin	vitilīgō	a skin disease, tetter
2	Latin	vitium	flaw, defect, blemish, error, fault; vice; crime
3	Proto-Indo-European	wi-tio-	—
4	Proto-Indo-European	wei	guilt, vice, fault