demulcent vs mellowed

demulcent

adj
  • Soothing or softening. 

noun
  • A soothing medication used to relieve pain in inflamed tissues. 

mellowed

adj
  • That has turned soft or tender by reason of ripeness. 

  • That has become mellow. 

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