haggler

from WordNet (r) 3.0 (2006)

haggler
    n 1: an intense bargainer

from The Collaborative International Dictionary of English v.0.48

Haggler \Hag"gler\ (h[a^]g"gl[~e]r), n.
   1. One who haggles or is difficult in bargaining.
      [1913 Webster]

   2. One who forestalls a market; a middleman between producer
      and dealer in London vegetable markets.
      [1913 Webster]