agitate vs mollify

agitate

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

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

mollify

verb
  • To appease (anger), pacify, gain the good will of. 

  • To ease a burden, particularly worry; make less painful; to comfort. 

  • To soften; to make tender 

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