Source : Webster's Revised Unabridged Dictionary (1913)

Surcharge \Sur*charge"\, v. t.
   To print or write a surcharge on (a postage stamp).

Surcharge \Sur*charge"\, n. [F.]
   1. (Railroads) A charge over the usual or legal rates.

   2. Something printed or written on a postage stamp to give it
      a new legal effect, as a new valuation, a place, a date,
      etc.; also (Colloq.), a stamp with a surcharge.

Surcharge \Sur*charge"\, v. t. [imp. & p. p. {Surcharged}; p.
   pr. & vb. n. {Surcharging}.] [F. surcharger. See {Sur-}, and
   {Charge}, and cf. {Overcharge}, {Supercharge}, {Supercargo}.]
   1. To overload; to overburden; to overmatch; to overcharge;
      as, to surcharge a beast or a ship; to surcharge a cannon.

            Four charged two, and two surcharged one. --Spenser.

            Your head reclined, as hiding grief from view,
            Droops like a rose surcharged with morning dew.
                                                  --Dryden.

   2. (Law)
      (a) To overstock; especially, to put more cattle into, as
          a common, than the person has a right to do, or more
          than the herbage will sustain. Blackstone.
      (b) (Equity) To show an omission in (an account) for which
          credit ought to have been given. --Story. Daniel.

Surcharge \Sur*charge"\, n. [F.]
   1. An overcharge; an excessive load or burden; a load greater
      than can well be borne.

            A numerous nobility causeth poverty and
            inconvenience in a state, for it is surcharge of
            expense.                              --Bacon.

   2. (Law)
      (a) The putting, by a commoner, of more beasts on the
          common than he has a right to.
      (b) (Equity) The showing an omission, as in an account,
          for which credit ought to have been given. --Burrill.

Source : WordNet®

surcharge
     n : an additional charge (as for items previously omitted or as
         a penalty for failure to exercise common caution or
         common skill)
     v 1: charge an extra fee, as for a special service
     2: rip off; ask an unreasonable price [syn: {overcharge}, {soak},
         {gazump}, {fleece}, {plume}, {pluck}, {rob}, {hook}]
        [ant: {undercharge}]
     3: fill to capacity with people; "The air raids had surcharged
        the emergency wards"
     4: print a new denomination on a stamp or a banknote
     5: fill to an excessive degree; "The air was surcharged with
        tension"
     6: place too much a load on; "don't overload the car" [syn: {overload},
         {overcharge}]
     7: show an omission in (an account) for which credit ought to
        have been given