Source : Webster's Revised Unabridged Dictionary (1913)

Unbowel \Un*bow"el\, v. t. [imp. & p. p. {Unboweled}or
   {Unbowelled}; p. pr. & vb. n. {Unboweling} or {Unbowelling}.]
   [1st pref. un- + bowel.]
   To deprive of the entrails; to disembowel. --Dr. H. More.