\Du*plic"i*ty\, n.; pl. {Duplicities}. [F.
duplicit['e], L. duplicitas, fr. duplex double. See
{Duplex}.]
1. Doubleness; a twofold state. [Archaic]
         Do not affect duplicities nor triplicities, nor any
         certain number of parts in your division of things.
                                               --I. Watts.
2. Doubleness of heart or speech; insincerity; a sustained
   form of deception which consists in entertaining or
   pretending to entertain one of feelings, and acting as if
   influenced by another; bad faith.
         Far from the duplicity wickedly charged on him, he
         acted his part with alacrity and resolution.
                                               --Burke.
3. (Law)
   (a) The use of two or more distinct allegations or
       answers, where one is sufficient. --Blackstone.
   (b) In indictments, the union of two incompatible
       offenses. --Wharton.
Syn: Double dealing; dissimulation; deceit; guile; deception;
     falsehood.