autocratic vs high and mighty

autocratic

adj
  • Of or pertaining to the manner of an autocrat. 

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

high and mighty

adj
  • Overbearingly arrogant; ostentatiously self-important or self-aggrandizing. 

  • Ever since she was placed in the gifted program, she's become so high and mighty that no one wants to be near her. 

noun
  • A social or economic group wielding undue power, influence or economic clout. 

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