1. English law. Limitation; restriction (a right to take fish from a canal without stint can exist as a profit in gross).
“All these species, of pasturable common, may be and usually are limited as to number and time; but there are also commons without stint, and which last all the year.” 2 William Blackstone, Commentaries on the Laws of England 34 (1766).
2. The task for the day or work (he has done his stint).