in·tes·ta·ble \(ˈ)in.|testəbəl, ən.ˈt-\adjective Etymology: Late Latin intestabilis, from Latin, execrable, accursed, from in- in- (I) + testari to be a witness, make a will + -abilis -able 1.: not competent to make a will < an intestable minor > < insane and intestable > 2.obsolete: incompetent to be a witness