duplicity

n. pl. duplicities (#).
  1. Doubleness; a twofold state.
  2. Doubleness of heart or speech; insincerity; a sustained form of deception which consists in entertaining or pretending to entertain one set of feelings, and acting as if influenced by another; bad faith.
    1. The use of two or more distinct allegations or answers, where one is sufficient.
    2. In indictments, the union of two incompatible offenses.