/ ˈkɔːdərɔɪ; NAmE ˈkɔːrd-/ noun
1.
(also cord ) [ U ] a type of strong soft cotton cloth with a pattern of raised parallel lines on it, used for making clothes :
a corduroy jacket
2.
cor·du·roys [ pl. ] ( old-fashioned ) = cords
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WORD ORIGIN
late 18th cent.: probably from cord ribbed fabric + duroy , denoting a kind of lightweight worsted formerly made in the West of England, of unknown origin.