The Collaborative International Dictionary of English v.0.48:

Imparl \Im*parl"\, v. i. [OF. emparler; pref. em- (L. in) +
   parler to speak. See In, prep., and Parley.]
   1. To hold discourse; to parley. [Obs.] --Sir. T. North.
      [1913 Webster]

   2. (Law) To have time before pleading; to have delay for
      mutual adjustment. --Blackstone.
      [1913 Webster]