tergiversate (v.)youdaoicibaDictYouDict[tergiversate 词源字典]
1650s, back-formation from tergiversation, or else from Latin tergiversatus, past participle of tergiversari "be evasive," literally "to turn one's back." Related: Tergiversated; tergiversating.[tergiversate etymology, tergiversate origin, 英语词源]