autocratic vs peremptory

autocratic

adj
  • Of or pertaining to autocracy or to an autocrat; absolute; holding independent and arbitrary powers of government. 

  • Of or pertaining to the manner of an autocrat. 

peremptory

adj
  • Accepting no refusal or disagreement; imperious, dictatorial. 

  • Precluding debate or expostulation; not admitting of question or appeal 

  • Positive in opinion or judgment; absolutely certain, overconfident, unwilling to hear any debate or argument (especially in a pejorative sense); dogmatic. 

noun
  • A challenge to the admission of a juror, without the challenger needing to show good cause. 

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