symptomatic (adj.)youdaoicibaDictYouDict[symptomatic 词源字典]
1690s, from French symptomatique or directly from Late Latin symptomaticus, from symptomat-, stem of symptoma (see symptom). General sense of "indicative (of)" is from 1751. Related: Symptomatical (1580s).[symptomatic etymology, symptomatic origin, 英语词源]