The Collaborative International Dictionary of English v.0.48:

Parle \Parle\, n.
   Conversation; talk; parley. [Obs.]
   [1913 Webster]

         They ended parle, and both addressed for fight.
                                                  --Milton.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Parle \Parle\, v. i. [F. parler. See Parley.]
   To talk; to converse; to parley. [Obs.] --Shak.
   [1913 Webster]

         Finding himself too weak, began to parle. --Milton.
   [1913 Webster]

V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

PARLE
       [conference on] Parallel ARchitecture and Languages Europe (ECRC,
conference)