assuagement vs palliative

assuagement

noun
  • An assuaging medicine or application. 

  • The action of assuaging; appeasement. 

  • The condition of being assuaged. 

palliative

noun
  • Something that palliates, particularly a palliative medicine. 

adj
  • Serving to palliate; serving to extenuate or mitigate. 

  • Minimising the progression of a disease and relieving undesirable symptoms for as long as possible, rather than attempting to cure the (usually incurable) disease. 

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