[1] : The Collaborative International Dictionary of English v.0.48

stupefy \stu"pefy\, v. t. imp.  p. p. stupefied; p. pr. 
   vb. n. stupefying. f. stup'efier, fr. l. stupere to be
   stupefied + ficare in comp. to make, akin to facere. see
   stupid, fact, and cf. stupefacient. written also
   stupify, especially in england.
   1. to make stupid; to make dull; to blunt the faculty of
      perception or understanding in; to deprive of sensibility;
      to make torpid.
      1913 webster

            the fumes of drink discompose and stupefy the brain.
                                                  --south.
      1913 webster

   2. to deprive of material mobility. obs.
      1913 webster

            it is not malleable; but yet is not fluent, but
            stupefied.                            --bacon.
      1913 webster
see also:
stupefied stupefying stupid fact stupefacient stupify 

[2] : WordNet (r) 2.0

stupefy
     v 1: make dull or stupid or muddle with drunkenness or
          infatuation syn: besot
     2: be a mystery or bewildering to; "this beats me"; "got me--i
        don't know the answer"; "a vexing problem"; "this
        question really stuck me" syn: perplex, vex, stick,
         get, puzzle, mystify, baffle, beat, pose, bewilder,
         flummox, nonplus, gravel, amaze, dumbfound
     3: make senseless or dizzy by or as if by a blow; "stun fish"
        syn: stun
     also: stupefied
see also:
besot perplex vex stick get puzzle 
mystify baffle beat pose bewilder 
flummox nonplus gravel amaze dumbfound 
stun stupefied 

[3] : Moby Thesaurus II by Grady Ward, 1.0

66 moby thesaurus words for "stupefy":
   ko, addle, amaze, anesthetize, appall, astonish, astound, awe,
   awestrike, bedaze, bedazzle, bemuse, benumb, besot, bewilder,
   blunt, boggle, bowl down, bowl over, chloroform, coldcock,
   confound, daze, dazzle, deaden, desensitize, dope, drug, dull,
   dumbfound, dumbfounder, etherize, faze, flabbergast, freeze,
   hebetate, horrify, kayo, knock out, knock senseless, knock stiff,
   knock unconscious, lay out, narcotize, nonplus, numb, obtund,
   overwhelm, palsy, paralyze, perplex, petrify, put to sleep, rattle,
   scare stiff, scare to death, shock, stagger, startle, strike dead,
   strike dumb, strike terror into, strike with wonder, stun,
   surprise, terrify

Stupefy >> S Words
Stupefy, definition of term: Stupefy
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