1620s, "abatement," alteration of 16c. French descompte, from Medieval Latin discomputus (source of Italian disconto), from discomputare (see discount (v.)). Meaning "deduction for early payment" is from 1680s; meaning "reduction in the price of goods" attested by 1837.
discount (v.)
1620s, "reckon as an abatement or deduction," from Old French desconter (13c., Modern French décompter), from Medieval Latin discomputare, from dis- (see dis-) + computare "to count" (see count (v.)). Hence, "to abate, deduct" (1650s), and figurative sense "to leave out of account, disregard" (1702). Related: Discounted; discounting.
例文
1. I 'll sell at a discount in return for a speedy sale.
できるだけ早く売るために割引販売します。
2.Eagle Star offers a 10% discount to the over-55 s.
鷹星は55歳以上の顧客に10%割引を与える。
3.In 1979、Liquor Barn thrived as a discount merchandiser.