concludent

from The Collaborative International Dictionary of English v.0.48

Concludent \Con*clud"ent\, a. [L. concludens, p. pr.]
   Bringing to a close; decisive; conclusive. [Obs.]
   [1913 Webster]

         Arguments highly consequential and concludent to my
         purpose.                                 --Sir M. Hale.
   [1913 Webster]