meticulous (adj.)youdaoicibaDictYouDict[meticulous 词源字典]
1530s, "fearful, timid," from Latin meticulosus "fearful, timid," literally "full of fear," from metus "fear, dread, apprehension, anxiety," of unknown origin. Sense of "fussy about details" is first recorded in English 1827, from French méticuleux "timorously fussy" [Fowler attributes this use in English to "literary critics"], from the Latin word. Related: Meticulosity.[meticulous etymology, meticulous origin, 英语词源]