The Collaborative International Dictionary of English v.0.48:

Lucre \Lu"cre\, n. [F. lucre, L. lucrum.]
   Gain in money or goods; profit; riches; -- often in an ill
   sense.
   [1913 Webster]

         The lust of lucre and the dread of death. --Pope.
   [1913 Webster]

WordNet (r) 3.0 (2006):

lucre
    n 1: informal terms for money [syn: boodle, bread,
         cabbage, clams, dinero, dough, gelt, kale,
         lettuce, lolly, lucre, loot, moolah, pelf,
         scratch, shekels, simoleons, sugar, wampum]
    2: the excess of revenues over outlays in a given period of time
       (including depreciation and other non-cash expenses) [syn:
       net income, net, net profit, lucre, profit,
       profits, earnings]