Source : Webster's Revised Unabridged Dictionary (1913)

Fork \Fork\, v. t.
   To raise, or pitch with a fork, as hay; to dig or turn over
   with a fork, as the soil.

         Forking the sheaves on the high-laden cart. --Prof.
                                                  Wilson.

   {To fork} {over or out}, to hand or pay over, as money.
      [Slang] --G. Eliot.