French rein

← Middle French rein (inherited)

← Old French rein (inherited)

← Old French reins (mention)

← Proto-Indo-European *gʷʰren- (inherited)

← Proto-Italic *hrēn (inherited)

← Latin rēnes (inherited)

← Latin rēn (mention)

→ English reins (mention)

→ French rognon (cognate)

→ French éreinter (affix)

→ Haitian Creole ren (derived)