haggler

From haggle +‎ -er.

haggler (plural hagglers)

1. A person who haggles.
2. (historical) A person who buys vegetables and other produce from farms and then sells them on in a different location; a person who transports farm goods.
   • 1891, Thomas Hardy, Tess of the d'Urbervilles, volume 1, London: James R. Osgood, McIlvaine and Co., page 4:

     'Then what might your meaning be in calling me "Sir John" these different times, when I be plain Jack Durbeyfield, the haggler?'