fictitious (adj.)youdaoicibaDictYouDict[fictitious 词源字典]
1610s, "artificial, counterfeit;" 1620s, "existing only in imagination," from Medieval Latin fictitius, a misspelling of Latin ficticius "artificial, counterfeit," from fictus "feigned, fictitious, false," past participle of fingere "to shape, form, devise, feign" (see fiction). Related: Fictitiously; fictitiousness.[fictitious etymology, fictitious origin, 英语词源]