TESTAMENT'ARY, adjective Pertaining to a will or to wills; as testamentary causes in law. 1. Bequeathed by will; given by testament; as testamentary charities. 2. Done by testament or will. Testamentary guardian of a minor, is one appointed by the deed or will of a father, until the child becomes of age.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI