dicker

Short definition from Wiktionary

Verb

1. 1
   To bargain, haggle or negotiate over a sale.
2. 2
   To barter.
3. 3
   To fiddle.

Noun

1. 1
   A unit of measure, consisting of 10 of some object, particularly hides and skins.
2. 2
   A chaffering, barter, or exchange, of small wares.