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THIRLAGE, Scotch law. The name of servitude by which lands are astricted or thirled to a particular mill, and the possessors bound to grind their grain there, for the payment of certain multures and sequels as the agreed price of grinding. Ersk. Prin. B. 2, t. 9, n. 18.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.