Where does “rebourser” come from?

rebourser (Middle French) comes from French rebours, from Late Latin reburrus — with bristling hair.

Ancestry of “rebourser”, step by step

Step	Language	Word	Meaning
1	French	rebours	churlish, disagreeable; opposite, reverse
2	Late Latin	reburrus	with bristling hair

rebourser — Etymology, Origin & Word History | Etymology Explorer