1. Of or pertaining to a will, or testament; as, letters testamentary.
2. Bequeathed by will; given by testament.
How many testamentary charities have been defeated by the negligence or fraud of executors! --Atterbury.
3. Done, appointed by, or founded on, a testament, or will; as, a testamentary guardian of a minor, who may be appointed by the will of a father to act in that capacity until the child becomes of age.
adj : of or relating to a will or testament or bequeathed by a
will or testament