The Collaborative International Dictionary of English v.0.48:

Bishop \Bish"op\, v. t. [imp. & p. p. Bishoped; p. pr. & vb.
   n. Bishoping.]
   To admit into the church by confirmation; to confirm; hence,
   to receive formally to favor.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Bishop \Bish"op\, v. t. [imp. & p. p. Bishoped; p. pr. & vb.
   n. Bishoping.] [From the name of the scoundrel who first
   practiced it. Youatt.] (Far.)
   To make seem younger, by operating on the teeth; as, to
   bishop an old horse or his teeth.
   [1913 Webster]

   Note: The plan adopted is to cut off all the nippers with a
         saw to the proper length, and then with a cutting
         instrument the operator scoops out an oval cavity in
         the corner nippers, which is afterwards burnt with a
         hot iron until it is black. --J. H. Walsh.
         [1913 Webster]