testamentary

adjective

1. of, relating to, or of the nature of a testament or will.
2. given, bequeathed, done, or appointed by will.
3. set forth or contained in a will.

adjective

1. of or relating to a will or testament
2. derived from, bequeathed, or appointed by a will
3. contained or set forth in a will

adj.mid-15c., from Latin testamentarius, from testamentum (see testament).