Source : Webster's Revised Unabridged Dictionary (1913)

Prejudge \Pre*judge"\, v. t. [imp. & p. p. {Prejudged}; p. pr. &
   vb. n. {Prejudging}.] [Pref. pre + judge: cf. F. pr['e]juger.
   Cf. {Prejudicate}, {Prejudice}.]
   To judge before hearing, or before full and sufficient
   examination; to decide or sentence by anticipation; to
   condemn beforehand.

         The committee of council hath prejudged the whole case,
         by calling the united sense of both houses of
         Parliament`` a universal clamor.''       --Swift.

Source : WordNet®

prejudge
     v : judge beforehand, especially without sufficient evidence