Thirlage was the law in regard of the milling of grain for personal or other uses. Vassals in a feudal barony were thirled to their local mill owned by the feudal superior.

Farewell to thirlage and multures
Thirlage Act 1799
Landlord-tenant relationships in Scotland from the sixteenth century to modern times.
O mlinovima i mlinarenju na Dravi potkraj 18. i po?etkom 19. stolje?a
Drava River mills and milling in the late 18th and early 19th century
A Stage of 'Improvement' in the Lothians at the End of the Eighteenth Century
スコットランド先進(jìn)地域における農(nóng)業(yè)近代化の一段階 : 一七九〇-九五年のロジアン農(nóng)業(yè)
Run of the river
Redgauntlet - Chapter II
The Surgeon's Daughter, by Walter Scott