assuagement vs quelling

assuagement

noun
  • The action of assuaging; appeasement. 

  • An assuaging medicine or application. 

  • The condition of being assuaged. 

quelling

noun
  • The act by which something is quelled. 

adj
  • causing something to quell or be quelled 

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