The Collaborative International Dictionary of English v.0.48:

Miscall \Mis*call"\, v. t.
   1. To call by a wrong name; to name improperly.
      [1913 Webster]

   2. To call by a bad name; to abuse. [Obs.] --Fuller.
      [1913 Webster]

WordNet (r) 3.0 (2006):

miscall
    v 1: assign in incorrect name to; "These misnamed
         philanthropists" [syn: misname, miscall]