agitate vs put at ease

agitate

verb
  • To disturb or excite; to perturb or stir up (a person). 

  • To cause to move with a violent, irregular action; to shake. 

put at ease

verb
  • To evoke or cause someone to be relaxed or calm. 

How often have the words agitate and put at ease occurred in a corpus of books? (source: Google Ngram Viewer )