The Collaborative International Dictionary of English v.0.48:

Rencounter \Ren*coun"ter\, v. i.
   To meet unexpectedly; to encounter in a hostile manner; to
   come in collision; to skirmish.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Rencounter \Ren*coun"ter\, n. [F. rencontre, from renconter to
   meet.]
   1. A meeting of two persons or bodies; a collision;
      especially, a meeting in opposition or contest; a combat,
      action, or engagement.
      [1913 Webster]

            The justling chiefs in rude rencounter join.
                                                  --Granville.
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   2. A causal combat or action; a sudden contest or fight
      without premeditation, as between individuals or small
      parties.
      [1913 Webster]

            The confederates should . . . outnumber the enemy in
            all rencounters and engagements.      --Addison.
      [1913 Webster]

   Syn: Combat; fight; conflict; collision; clash.
        [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Rencounter \Ren*coun"ter\ (r?n-koun"t?r), v. t. [imp. & p. p.
   Rencountered (-t?rd); p. pr. & vb/ n. Rencountering.] [F.
   rencontrer; pref. re- + OF. encontrer to encounter. See
   Encounter.]
   1. To meet unexpectedly; to encounter.
      [1913 Webster]

   2. To attack hand to hand. [Obs.] --Spenser.
      [1913 Webster]