Source : Webster's Revised Unabridged Dictionary (1913)

Hebetate \Heb"e*tate\, v. t. [imp. & p. p. {Hebetated}; p. pr. &
   vb. n. {Hebetating}.] [L. hebetatus, p. p. of hebetare to
   dull. See {Hebete}.]
   To render obtuse; to dull; to blunt; to stupefy; as, to
   hebetate the intellectual faculties. --Southey