intelligent (adj.)youdaoicibaDictYouDict[intelligent 词源字典]
c. 1500, a back-formation from intelligence or else from Latin intelligentem (nominative intelligens), present participle of intelligere, earlier intellegere (see intelligence). Intelligent design, as a name for an alternative to atheistic cosmology and the theory of evolution, is from 1999. Related: Intelligently.[intelligent etymology, intelligent origin, 英语词源]