Coupon, related to cope and coup, is of French origin. It has developed an American pronunciation variant [kyoo-pon] with an unhistorical y -sound not justified by the spelling. This pronunciation is used by educated speakers and is well-established as perfectly standard, although it is sometimes criticized.
Coupon Definition & Meaning | Dictionary.com
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coupon (n.) 1822, "certificate of interest due on a bond" (a piece which could be cut from the bond and presented for payment), from French coupon, literally "piece cut off," from couper "to cut," from coup "a blow" (see coup).
Origin and meaning of coupon by Online Etymology Dictionary
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A paper entitling you to 10 percent off of a meal in a restaurant is an example of a coupon. The part of a savings bond that you can detach and use to redeem interest payments is an example of a coupon. ... The interest payment that must be made on a note or bond until it matures.
Coupon Meaning | Best 9 Definitions of Coupon - YourDictionary
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