efficiency的词源

英文词源

efficiency (n.)

1590s, "power to accomplish something," from Latin efficientia "efficient power; efficiency; influence" (from efficientem; see efficient) + -cy. In mechanics, "ratio of useful work done to energy expended," from 1858. Attested from 1952 as short for efficiency apartment (itself from 1920).

中文词源

efficiency：效率

ef-, 向外。-fic, 做，词源同fact, effect.

该词的英语词源请访问趣词词源英文版：efficiency 词源，efficiency 含义。

efficiency：效率，功效

词根词缀： ef-(=ex-)出 + -fic-做,作 + -i- + -ency名词词尾