Gabel
The Cyclopedic Law Dictionary · Walter A. Shumaker and George Foster Longsdorf; ed. James C. Cahill · 1922
The Cyclopedic Law Dictionary
GAFOL, or GAVEL. A tax, imposition, or duty. This word is said to have the same signification that gabelle formerly had in France.
Cunningham.
But this seems to be an error; for gabelle signified in that country, previous to its revolution, a duty upon salt. Merlin, Repert. Lord Coke says that gabel or gavel, gablum, gabellum, gabelletum, galbelletum, and gavillettum, signify a rent, duty, or service yielded or done to the king or any other lord.
Co. Litt. 142 a.