Centaur vs behemoth

Centaur

noun
  • A skillful horseman or horsewoman. 

  • One of a race of monsters having a head, torso, and arms of a man, and the body and legs of a horse. Often depicted as rowdy drunkards, with Chiron being a notable exception. 

  • A U.S. upper stage, with a restartable liquid-propellant engine, used with an Atlas or Titan booster to launch satellites and probes. 

  • An icy planetoid that orbits the Sun between Jupiter and Neptune 

behemoth

noun
  • Something which has the qualities of great power and might, and monstrous proportions. 

  • Any great and mighty monster. 

  • A great and mighty beast God shows Job in Job 40:15–24. 

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