French word coupure comes from French couper, French -ure (Used to form nouns describing the result of an action.)

Detailed word origin of coupure

Dictionary entry	Language	Definition
couper	French (fra)	(reflexive, se couper, of leather) to crack. To cut off, to keep out. To cut, cut up, to chop. To dilute (with water).
-ure	French (fra)	Used to form nouns describing the result of an action.
coupure	French (fra)	Bill, a piece of paper money. Interruption. Power cut, blackout. The act or result of cutting; a cut.

Words with the same origin as coupure