disquiet vs put at ease

disquiet

verb
  • To make (someone or something) worried or anxious. 

noun
  • Lack of quiet; absence of tranquility in body or mind 

put at ease

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

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