Source : Webster's Revised Unabridged Dictionary (1913)

Belike \Be*like"\, adv. [Pref. be- (for by) + like.]
   It is likely or probably; perhaps. [Obs. or Archaic] --
   {Be*like"ly}, adv.

         Belike, boy, then you are in love.       --Shak.

Source : WordNet®

belike
     adv : with considerable certainty; without much doubt; "He is
           probably out of the country"; "in all likelihood we are
           headed for war" [syn: {probably}, {likely}, {in all
           likelihood}, {in all probability}]