Source : Webster's Revised Unabridged Dictionary (1913)

Befool \Be*fool"\, v. t. [imp. & p. p. {Befooled}; p. pr. & vb.
   n. {Befooling}.] [OE. befolen; pref. be- + fol fool.]
   1. To fool; to delude or lead into error; to infatuate; to
      deceive.

            This story . . . contrived to befool credulous men.
                                                  --Fuller.

   2. To cause to behave like a fool; to make foolish. ``Some
      befooling drug.'' --G. Eliot.

Source : WordNet®

befool
     v 1: make a fool or dupe of [syn: {fool}, {gull}]
     2: fool or hoax; "The immigrant was duped because he trusted
        everyone"; "You can't fool me!" [syn: {gull}, {dupe}, {slang},
         {cod}, {fool}, {put on}, {take in}, {put one over}, {put
        one across}]