What is Attorument?

Legal Definition
Estates. Was the agreement of the tenant to the grant of the seignory, or of a rent, or the agreement of the donee in tail, or tenant for life, or years, to a grant of a reversion or of a remainder made to another. Co. Litt. 309; Touchs. 253. Attoruments are rendered unnecessary, even in England, by virtue of sundry statutes, and they are abolished in the United States. 4 Kent, Com. 479; 1 Hill. Ab. 128, 9. Vide 3 Vin. Ab. 317; 1 Vern. 330, n.; Saund. 234, n. 4; Roll. Ab. h. t.; Nelson's Ab. h. t.; Com. Dig. h. t.
-- Bouviers Law Dictionary
Legal Definition
In feudal and old English law. A turning over or transfer by a lord of the services of his tenant to the grantee of his seigniory. Attorument is the act of a person who holds a leasehold interest in land, or estate for life or years, by which he agrees to become the tenant of a stranger who has acquired the fee in the land, or the remainder or reversion, or the right to the rent or services by which the tenant holds. Lindley v. Dakin, 13 Ind. 388; Willis v. Moore, 59 Tex. 636, 46 Am. Rep. 284; Foster v. Morris, 3 A. K. Marsh. (Ky.) 610, 13 Am. Dec. 205.
-- Black's Law Dictionary
Legal Definition
The tenant’s assent to a change of landlords. See 13 Ind. 388.
-- Ballentine's Law Dictionary