A small flat piece of stiff paper.
From French 'carte' and Latin 'charta', meaning paper or papyrus, itself from Greek 'khartes'. The word entered English in the late medieval period, originally referring to playing cards.
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A bet or something risked on an uncertain outcome.
Wager comes from Anglo-French 'wageure,' derived from Old North French 'wagier,' meaning to pledge or stake something. It is related to the word 'wage,' both sharing the idea of a pledge or guarantee. The word has been used in English since the medieval period.
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