An assurance by the grantor of an estate that the grantee shall enjoy the same without interruption by virtue of paramount title . King v. Kilbride, 58 Conn. 109, 19 Atl. 519; Kincaid v. Brittain, 5 Sneed (Tenn.) 124; King v. Kerr, 5 Ohio, 155, 22 Am. Dec. 777; Chapman v. Holmes, 10 N. J. Law, 26.