Definition of Estover

The right or privilege which a tenant has to furnish himself with so much wood from the demised premises as may be sufficient or necessary for his fuel, fences, and other agricultural operations. 2 Bl.Comm. 35.

An allowance made to a person out of an estate or other thing for his or her support, as for food and raiment.

An allowance (more commonly called “alimony") granted to a woman divorced a mensa et thoro, for her support out of her husband’s estate. 1 Bl.Comm. 441.

That's the definition of Estover in Black's Law Dictionary 6th Edition. Courtesy of