Source : Webster's Revised Unabridged Dictionary (1913)

Scourger \Scour"ger\, n.
   One who scourges or punishes; one who afflicts severely.

         The West must own the scourger of the world. --Byron.

Source : WordNet®

scourger
     n : a torturer who flogs or scourges (especially an official
         whose duty is to whip offenders) [syn: {flogger}]