Where does “soleil” come from?

soleil (Old French) comes from Vulgar Latin soliculus, from Latin sōl, from Proto-Indo-European sóh₂wl̥ — sun.

soleil (Old French): sun

Definitions

Step	Language	Word	Meaning
1	Vulgar Latin	soliculus	—
2	Latin	sōl	—
3	Proto-Indo-European	sóh₂wl̥	sun

soleil — Etymology, Origin & Word History | Etymology Explorer