Voluntas testatoris ambulatoria est usque ad mortem
Voluntas testatoris ambulatoria est usque ad mortem. The will of a testator is ambulatory until his death; that is, he may change it at any time. See 1 Bouv. inst. n. 83.
A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.