Timeline
"To be duplicitous is to engage in duplicity, which refers to the practice of misleading someone in this way, to the quality of a person who does this, or to an instance of such deception.
People who are liars are duplicitous. The word is based on the idea of presenting two or more different versions of oneself or of a situation. Fittingly, duplicitous people are often accused of being two-faced or of “speaking out of both sides of their mouth.” This typically means that they say different things to different people (in other words, they lie) in order to serve their agenda.
