despot vs tormentor

despot

noun
  • A ruler with absolute power; a tyrant. 

  • A title awarded to senior members of the imperial family in the late Byzantine Empire, and claimed by various independent or semi-autonomous rulers in the Balkans (12th to 15th centuries) 

tormentor

noun
  • One who torments; a person, animal, or object that causes suffering. 

  • An implement for reducing a stiff soil, resembling a harrow, but running upon wheels. 

  • Something abstract that causes suffering. 

  • One of a pair of narrow curtains just behind the front curtain and teaser that mask the areas on the sides of the stage and can be adjusted to the desired width. 

How often have the words despot and tormentor occurred in a corpus of books? (source: Google Ngram Viewer )