How do you spell Dicker

Available Definitions:
1)  n. - The number or quantity of ten, particularly ten hides or skins; a dakir; as, a dicker of gloves.
2)  n. - A chaffering, barter, or exchange, of small wares; as, to make a dicker.
3)  v. i. & t. - To negotiate a dicker; to barter.