Where does “dosèl” come from?

dosèl (Réunion Creole French) comes from French sel, from Middle French sel, from Old French sel, from Latin sāl, from Proto-Italic sāls, from Proto-Indo-European *sḗh₂l — salt.

Ancestry of “dosèl”, step by step

Step	Language	Word	Meaning
1	French	sel	table salt, i.e. sodium chloride; salt; smelling...
2	Middle French	sel	salt
3	Old French	sel	salt
4	Latin	sāl	salt
5	Proto-Italic	sāls	salt
6	Proto-Indo-European	*sḗh₂l	salt

Every word from Proto-Indo-European *sḗh₂l →Every word from Proto-Italic sāls →Every word from Latin sāl →