convoluted (adj.)youdaoicibaDictYouDict[convoluted 词源字典]
1811, past participle adjective from verb convolute (1690s), from Latin convolutus, past participle of convolvere (see convolution); or perhaps a back-formation from convolution. French has convoluté (18c.), in form a past participle adjective, without the verb.[convoluted etymology, convoluted origin, 英语词源]