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The Collaborative International Dictionary
Proditorious

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.

Wiktionary
proditorious

a. (context obsolete English) treacherous, traitorous.