Source : Webster's Revised Unabridged Dictionary (1913)

Agiotage \Ag"i*o*tage\, n. [F. agiotage, fr. agioter to practice
   stockjobbing, fr. agio.]
   Exchange business; also, stockjobbing; the maneuvers of
   speculators to raise or lower the price of stocks or public
   funds.

         Vanity and agiotage are to a Parisian the oxygen and
         hydrogen of life.                        --Landor.

Source : WordNet®

agiotage
     n : a fee charged for exchanging currencies [syn: {agio}, {premium},
          {exchange premium}]