Where does “rein” come from?
rein (French) comes from Middle French rein, from Old French rein, from Latin rēn, from Proto-Italic hrēn, from Proto-Indo-European gʷʰren- — soul, mind; mind; an internal part of the body.
rein (French): kidney; small of the back, waist
Definitions
- kidney; small of the back, waist