Coupe

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mid 19th century (in coupe1 (sense 2)): from French carrosse coupé, literally ‘cut carriage’. coupe1 (sense 1) dates from the early 20th century.

wiktionary

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Borrowed from French coupe. Doublet of cup and keeve.

etymonline

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coupe (n.)

1834, "low, short, four-wheeled, close carriage without the front seat, carrying two inside, with an outside seat for the driver," also "front compartment of a stage coach," from French coupe (18c.), short for carrosse coupe "cut-off carriage," a shorter version of the Berlin, minus the back seat, from couper "to cut (in half);" see coup. Applied to closed two-door automobiles by 1897. Coup de ville is from 1931, originally a car with an open driver's position and an enclosed passenger compartment.