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]

U.S. Gazetteer (1990):

Prosperity, PA
  Zip code(s): 15329
Prosperity, SC (town, FIPS 58705)
  Location: 34.21033 N, 81.53430 W
  Population (1990): 1116 (441 housing units)
  Area: 4.9 sq km (land), 0.0 sq km (water)
  Zip code(s): 29127
Prosperity, WV (CDP, FIPS 65836)
  Location: 37.83525 N, 81.20318 W
  Population (1990): 1322 (560 housing units)
  Area: 4.6 sq km (land), 0.0 sq km (water)

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