Where does “sole” come from?

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

sole (Norman): sole

Definitions

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

sole — Etymology, Origin & Word History | Etymology Explorer