Source : Webster's Revised Unabridged Dictionary (1913)

Befog \Be*fog"\, v. t. [imp. & p. p. {Befogged}; p. pr. & vb. n.
   {Befogging}.]
   1. To involve in a fog; -- mostly as a participle or part.
      adj.

   2. Hence: To confuse; to mystify.

Source : WordNet®

befog
     v : make less visible or unclear; "The stars are obscured by the
         clouds" [syn: {obscure}, {becloud}, {obnubilate}, {haze
         over}, {fog}, {cloud}, {mist}]
     [also: {befogging}, {befogged}]