duplicity

名词 duplicity:

1. a fraudulent or duplicitous representation
   同义词：fraudulence
2. acting in bad faith; deception by pretending to entertain one set of intentions while acting under the influence of another
   同义词：double-dealing

du.plic.i.ty

n.（名词）
【复数】 du.plic.i.ties

Deliberate deceptiveness in behavior or speech.
口是心非：在行为或语言上有意的欺骗
An instance of deliberate deceptiveness; double-dealing.
有意欺骗的实例；两面派
The quality or state of being twofold or double.
两重性：具有两方面的性质或状态

来源：
Middle English duplicite
中古英语 duplicite
from Old French
源自 古法语
from Late Latin duplicit3s [doubleness]
源自 后期拉丁语 duplicit3s [两重性]
from Latin duplex duplic- [twofold] * see dwo-
源自 拉丁语 duplex duplic- [二重的] *参见 dwo-