testamental

from The Collaborative International Dictionary of English v.0.48

Testamental \Tes`ta*men"tal\, a. [L. testamentalis.]
   Of or pertaining to a testament; testamentary.
   [1913 Webster]

         Thy testamental cup I take,
         And thus remember thee.                  --J.
                                                  Montgomery.
   [1913 Webster]