Noah Webster's Dictionary 1. (v. t.) To cut off from an inheritance or from hereditary succession; to prevent, as an heir, from coming into possession of any property or right, which, by law or custom, would devolve on him in the course of descent. 2. (v. t.) To deprive of heritage; to dispossess.

Multi-Version Concordance Disinherit (1 Occurrence) Numbers 14:12 I will strike them with the pestilence, and disinherit them, and will make of you a nation greater and mightier than they." (WEB KJV ASV WBS RSV)