Source : Webster's Revised Unabridged Dictionary (1913)

Deprehend \Dep`re*hend"\, v. t. [imp. & p. p. {Deprehended}; p.
   pr. & vb. n. {Deprehending}.] [L. deprehendere, deprehensum;
   de- + prehendere to lay hold of, seize. See {Prehensile}.]
   1. To take unwares or by surprise; to seize, as a person
      commiting an unlawful act; to catch; to apprehend.

            The deprehended adulteress.Jer.       --Taylor.

   2. To detect; to discover; to find out.

            The motion . . . are to be deprehended by
            experience.                           --Bacon.