Source : Webster's Revised Unabridged Dictionary (1913)

Consociate \Con*so"ci*ate\, n. [L. consociatus, p. p. of
   consociare to associate, unite; con- + sociare to join,
   unite. See {Social}.]
   An associate; an accomplice. [Archaic] ``Wicked
   consociates.'' --Bp. Hall.

Consociate \Con*so"ci*ate\, v. t. [imp. & p. p. {Consociated};
   p. pr. & vb. n. {Consociating}.]
   1. To bring into alliance, confederacy, or relationship; to
      bring together; to join; to unite. [R.]

            Join pole to pole, consociate severed worlds.
                                                  --Mallet.

   2. To unite in an ecclesiastical consociation. [U.S.]

Consociate \Con*so"ci*ate\, v. i.
   1. To be allied, confederated, or associated; to coalescence.
      [R.] --Bentley.

   2. To form an ecclesiastical consociation. [U.S.]

Source : WordNet®

consociate
     v : bring or come into association or action; "The churches
         consociated to fight their dissolution" [syn: {associate}]