amateur (n.)youdaoicibaDictYouDict[amateur 词源字典]
1784, "one who has a taste for (something)," from French amateur "lover of," from Latin amatorem (nominative amator) "lover," agent noun from amatus, past participle of amare "to love" (see Amy). Meaning "dabbler" (as opposed to professional) is from 1786. As an adjective, by 1838.[amateur etymology, amateur origin, 英语词源]