The Collaborative International Dictionary of English v.0.48:

Compear \Com*pear"\, v. i. [F. comparoir, L. compar[=e]re; com-
   + par[=e]re to appear.]
   1. To appear. [Obs.]
      [1913 Webster]

   2. (Law) To appear in court personally or by attorney.
      [Scot.]
      [1913 Webster]