rare. [UN-2 3.] trans. To deprive of bounds or limits.
1598. Sylvester, Du Bartas, II. ii. Colonies, 178. The thirst of Vengeance, and that puffing breath Of elvish Honour Un-bound all Countries.
1612. Drayton, Poly-olb., v. 104. Gowr, whose promontory (placd to check the oceans powr) Kept in Severne yet herself, till being growne too great Shee with extended armes unbounds her ancient seat.