Calculate
来自Big Physics
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late Middle English: from late Latin calculat- ‘counted’, from the verb calculare, from calculus ‘a small pebble (as used on an abacus)’.
wiktionary
Borrowed from Latin calculātus, perfect passive participle of calculō(“I reckon, originally by means of pebbles”), from calculus(“a pebble”). Refer to calculus for origin.
etymonline
calculate (v.)
1560s, "to ascertain by computation, estimate by mathematical means," from Latin calculatus, past participle of calculare "to reckon, compute," from calculus (see calculus). Meaning "to plan, devise" is from 1650s; hence "to purpose, intend" and "to think, guess" (1830), both U.S. idioms. Replaced earlier calculen (mid-14c.), from Old French calculer. Related: Calculable.
