GRAFT. A figurative term in chancery practice, to designate the right of a mortgagee in premises, to which the mortgagor at the time of making the mortgage had an imperfect title, but who afterwards obtained a good title. In this case the new mortgage is considered a graft into the old stock, and, as arising in consideration of the former title. 1 Ball & Beat. 46; Id. 40; Id. 57; 1 Pow. on Mortg. 190. See 9 Mass. 34. The same principle has obtained by legislative enactment in Louisiana. If a person contracting an obligation towards another, says the Civil Code, art. 2371, grants a mortgage on property of which he is not then the owner, this mortgage shall be valid, if the debtor should ever acquire the ownership of, the property, by whatever right.