A tax paid for some liberty or privilege, particularly for the privilege of passing over a bridge or on a highway, or for that of vending goods in a fair, market, or the like.
A payment either on goods, vehicles, or persons passing a particular point, e.g. a bridge, ford, gate, or quay, or on the buying and selling of goods at a market or fair. (Reynolds, Susan. An Introduction to the History of English Medieval Towns, 200)