Source : Webster's Revised Unabridged Dictionary (1913)

Emolument \E*mol"u*ment\, n. [L. emolumentum, lit., a working
   out, fr. emoliri to move out, work out; e out + moliri to set
   in motion, exert one's self, fr. moles a huge, heavy mass:
   cf. F. ['e]molument. See {Mole} a mound.]
   The profit arising from office, employment, or labor; gain;
   compensation; advantage; perquisites, fees, or salary.

         A long . . . enjoyment of the emoluments of office.
                                                  --Bancroft.

Source : WordNet®

emolument
     n : compensation received by virtue of holding an office or
         having employment (usually in the form of wages or fees);
         "a clause in the U.S. constitution prevents sitting
         legislators from receiving emoluments from their own
         votes"