Decern

from The Collaborative International Dictionary of English v.0.48

Decern \De*cern"\, v. t. [L. decernere. See {Decree}.]
   1. To perceive, discern, or decide. [Obs.] --Granmer.
      [1913 Webster]

   2. (Scots Law) To decree; to adjudge.
      [1913 Webster]