The Collaborative International Dictionary of English v.0.48:

Greed \Greed\ (gr[=e]d"), n. [Akin to Goth. gr[=e]dus hunger,
   Icel. gr[=a][eth]r. [root]34. See Greedy.]
   An eager desire or longing; greediness; as, a greed of gain.
   [1913 Webster]

WordNet (r) 3.0 (2006):

greed
    n 1: excessive desire to acquire or possess more (especially
         more material wealth) than one needs or deserves
    2: reprehensible acquisitiveness; insatiable desire for wealth
       (personified as one of the deadly sins) [syn: avarice,
       greed, covetousness, rapacity, avaritia]