deduct 的词源

15世纪早期，“在估算或计数中拿走、分开或移除”，源自拉丁语deductus，是deducere的过去分词，意为“引导下来，带走”；参见deduce，它们曾经可以互换使用。Deduct指的是拿走部分或数量；subtract指的是拿走数字。相关词：Deducted；deducting。

Deduct is to lead away, set aside, in a general or distributive sense; subtract, to draw off, remove, in a literal or collective sense. In settling a mercantile account, certain items, as charges, losses, etc. are deducted by being added together and their total subtracted from the grand total of the transaction. [Century Dictionary]

Deduct是指在一般或分配意义上引导离开、搁置；subtract是指在字面或集合意义上抽取、移除。在结算商业账目时，某些项目，如费用、损失等，通过相加后从交易的总额中减去来进行扣除。[世纪词典]