The Collaborative International Dictionary of English v.0.48:

Shunt \Shunt\, v. t. [imp. & p. p. Shunted; p. pr. & vb. n.
   Shunting.] [Prov. E., to move from, to put off, fr. OE.
   shunten, schunten, schounten; cf. D. schuinte a slant, slope,
   Icel. skunda to hasten. Cf. Shun.]
   1. To shun; to move from. [Obs. or Prov. Eng.]
      [1913 Webster]

   2. To cause to move suddenly; to give a sudden start to; to
      shove. [Obs. or Prov. Eng.] --Ash.
      [1913 Webster]

   3. To turn off to one side; especially, to turn off, as a
      grain or a car upon a side track; to switch off; to shift.
      [1913 Webster]

            For shunting your late partner on to me. --T.
                                                  Hughes.
      [1913 Webster]

   4. (Elec.) To provide with a shunt; as, to shunt a
      galvanometer.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Shunting \Shunt"ing\, p. pr. & vb. n. of Shunt. Specif.: vb.
   n.
   (a) (Railroads) Switching; as, shunting engine, yard, etc.
       [British]
   (b) (Finance) Arbitrage conducted between certain local
       markets without the necessity of the exchange involved in
       foreign arbitrage. [Great Britain]
       [Webster 1913 Suppl.]