Source : Webster's Revised Unabridged Dictionary (1913)

Prosperity \Pros*per"i*ty\, n. [F. prosp['e]rit['e], L.
   prosperitas. See {Prosperous}.]
   The state of being prosperous; advance or gain in anything
   good or desirable; successful progress in any business or
   enterprise; attainment of the object desired; good fortune;
   success; as, commercial prosperity; national prosperity.

         Now prosperity begins to mellow.         --Shak.

         Prosperities can only be enjoyed by them who fear not
         at all to lose them.                     -- Jer.
                                                  Taylor.

   Syn: Prosperousness; thrift; weal; welfare; well being;
        happiness.

Source : WordNet®

prosperity
     n 1: an economic state of growth with rising profits and full
          employment
     2: the condition of prospering; having good fortune [syn: {successfulness}]