Source : Webster's Revised Unabridged Dictionary (1913)

Proditorious \Prod`i*to"ri*ous\, a. [Cf. OF. proditoire.]
   1. Treacherous; perfidious; traitorous. [Obs.] --Daniel.

   2. Apt to make unexpected revelations. [Obs.] ``Nature is
      proditorious.'' --Sir H. Wotton.