duplicity
/djuːˈplɪsətɪ/noun
mass noun
1
- deceitfulness; double-dealing奸诈, 欺骗; 两面派行为, 表里不一。
2
- archaic doubleness〈古〉两重性, 双重性。
词源
late Middle English: from Old French duplicite or late Latin duplicitas, from Latin duplic- 'twofold' （see DUPLEX）.