Where does “outil” come from?

outil (French) comes from Middle French outil, from Old French ustil, from Sanskrit उत्ति॑ष्ठति.

outil (French): tool

Definitions

Step	Language	Word	Meaning
1	Middle French	outil	tool
2	Old French	ustil	—
3	Sanskrit	उत्ति॑ष्ठति	—

outil — Etymology, Origin & Word History | Etymology Explorer