1) As a noun this was an allotted number or amount.
1541-2 ‘no husbandman shall ... keep more than two geese and one gander or a gresseman more than one goose and one gander ... for each goose beyond le stynt ... 4d’, Scruton
1584 to goo and depastour ... wytheout stynt or number, Tong
1660 Noe person shall putt more goods into the Meanefield then their stinte, South Crosland. It was also used as a verb with reference to common pastures: 1599-1600 The stinted pastures be all stinted after the ancient rent, Settrington
1670 on the west stinting of the Wetlands of Thirske. Used occasionally of the pasture itself: 1668 such parte of that stent and pasture belonging to Hebden called Hebden Pasture.