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# calculate (v.)

1560s, "ascertain by computation, estimate by mathematical means," from Latin calculatus, past participle of calculare "to reckon, compute," from calculus (see calculus). It replaced earlier calculen (mid-14c.), from Old French calculer.

The meaning "to plan, devise" is attested from 1650s; hence "to purpose, intend" and "think, guess" (1830), both U.S. idioms. Related: Calculable.

updated on October 30, 2022

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### Dictionary entries near *calculate*

calcareous

calcify

calcite

calcitrant

calcium

calculate

calculated

calculating

calculation

calculator

calculous