The Collaborative International Dictionary of English v.0.48:

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.
   [1913 Webster]

         Now prosperity begins to mellow.         --Shak.
   [1913 Webster]

         Prosperities can only be enjoyed by them who fear not
         at all to lose them.                     -- Jer.
                                                  Taylor.
   [1913 Webster]

   Syn: Prosperousness; thrift; weal; welfare; well being;
        happiness.
        [1913 Webster]

WordNet (r) 3.0 (2006):

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

Moby Thesaurus II by Grady Ward, 1.0:

102 Moby Thesaurus words for "prosperity":
   Saturnia regna, Saturnian age, abundance, accomplishment,
   advantage, affluence, age of Aquarius, arrival, assets,
   bed of roses, benefit, boom, bottoming out, bottomless purse,
   bounty, bulging purse, business cycle, business fluctuations, bust,
   cooling off, crisis, depression, do, downturn, ease,
   easy circumstances, easy street, economic cycle,
   economic expansion, economic growth, embarras de richesses,
   era of prosperity, expanding economy, expansion, fair weather,
   fortunate outcome, fortune, go, gold, golden age, golden era,
   golden time, good, good fortune, good times, growth, halcyon days,
   handsome fortune, heaven, heyday, high growth rate, high income,
   high tax bracket, independence, inflation, interest, life of ease,
   low, lucre, luxuriousness, luxury, mammon, market expansion,
   material wealth, millennium, money, money to burn, moneybags,
   opulence, opulency, palmy days, peak, peaking, pelf, piping times,
   plenty, possessions, property, prosperous issue, prosperousness,
   recession, recovery, reign of Saturn, riches, richness, rosy era,
   six-figure income, slowdown, slump, substance, success, sunshine,
   the good life, thriving, treasure, upper bracket, upturn, utopia,
   victory, wealth, wealthiness, well-being



U.S. Gazetteer Places (2000):

Prosperity, SC -- U.S. town in South Carolina
   Population (2000):    1047
   Housing Units (2000): 456
   Land area (2000):     2.111435 sq. miles (5.468591 sq. km)
   Water area (2000):    0.002248 sq. miles (0.005823 sq. km)
   Total area (2000):    2.113683 sq. miles (5.474414 sq. km)
   FIPS code:            58705
   Located within:       South Carolina (SC), FIPS 45
   Location:             34.210657 N, 81.534347 W
   ZIP Codes (1990):     29127
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Prosperity, SC
    Prosperity


U.S. Gazetteer Places (2000):

Prosperity, WV -- U.S. Census Designated Place in West Virginia
   Population (2000):    1310
   Housing Units (2000): 624
   Land area (2000):     1.558323 sq. miles (4.036037 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    1.558323 sq. miles (4.036037 sq. km)
   FIPS code:            65836
   Located within:       West Virginia (WV), FIPS 54
   Location:             37.835936 N, 81.205919 W
   ZIP Codes (1990):
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Prosperity, WV
    Prosperity