aggravate vs put at ease

aggravate

verb
  • To exasperate; to provoke or irritate. 

  • To make (an offence) worse or more severe; to increase in offensiveness or heinousness. 

  • To make worse; to exacerbate. 

put at ease

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

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