Dicker (verb)

1. Bargain or haggle over the price of something.
2. Negotiate or argue persistently over something with another person.

Origin:

Late middle english (in the sense "bargain, haggle"): of unknown origin.

Examples:

1. We dickered over the price of the car for a while before finally coming to an agreement.
2. He spent hours dickering over the price of the painting before finally buying it.
3. She dickered with the vendor over the price of the produce.
4. They dickered for hours over the price of the old car before finally settling on a price.
5. I don't want to dicker over the price. Tell me your best offer.