equilibrate vs propitiate

equilibrate

verb
  • To balance, or bring into equilibrium. 

  • To balance, to be in a state of equilibrium. 

propitiate

verb
  • To make propitiation. 

  • To make propitious or favourable. 

  • To conciliate, appease, or make peace with someone, particularly a god or spirit. 

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