imperatorial vs predominate

imperatorial

adj
  • Commanding; authoritative. 

  • Relating to the title or office of imperator. 

predominate

adj
  • Predominant. 

verb
  • To dominate, have control, or succeed by superior numbers or size. 

  • To be prominent; to loom large; to be the chief component of a whole. 

  • To dominate or hold power over, especially through numerical advantage; to outweigh. 

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