- cost [kôst, käst]vt.cost, costing [ME costen < OFr coster < ML costare < L constare, to stand together, stand at, cost < com-, together + stare, to STAND]1.a) to be obtained or obtainable for (a certain price); be priced atb) to cause or require the expenditure, loss, or experience of [victory cost him his health]: orig. construed as a vi. with the apparent object an adverbial adjunct, and still felt as a vi. when used with an adverb [it cost him dearly]2. costed, costing Business to estimate the cost of making, producing, carrying out, etc., as a product or program: often with outvi.Informal to be expensiven.1.a) the amount of money, etc. asked or paid for a thing; priceb) the amount spent in producing or manufacturing a commodityc) the amount paid for something by a dealer, contractor, etc.: a markup is usually added to arrive at a selling price [stoves sold at cost in a sale]2.a) the amount of money, time, effort, etc. required to achieve an endb) loss, sacrifice; detriment [to smoke at the cost of one's health]3. [pl.] Law the expenses of a lawsuit, esp. those assessed by the court against the losing party——————at all costs or at any costregardless of the cost or difficulty involved; by any means required: also at any cost
English World dictionary. V. Neufeldt. 2014.