Source : Webster's Revised Unabridged Dictionary (1913)

Prevaricator \Pre*var"i*ca`tor\, n. [L. praevaricator: cf. F.
   pr['e]varicateur.]
   1. One who prevaricates.

   2. (Roman Law) A sham dealer; one who colludes with a
      defendant in a sham prosecution.

   3. One who betrays or abuses a trust. --Prynne.

Source : WordNet®

prevaricator
     n : a person who has lied or who lies repeatedly [syn: {liar}]
         [ant: {square shooter}]