Deed poll
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
In conveyancing. A deed of one part or made by one party only; and originally so called because the edge of the paper or parchment was polled or cut in a straight line, wherein it was distinguished from a deed indented or indenture. As to a special use of this term in Pennsylvania in colonial times, see Herron v. Dater, 120 U. S. 464 , 7 Sup. Ct. 620, 30 L. Ed. 748