chagrin vs reassure

chagrin

noun
  • Distress of mind caused by a failure of aims or plans, want of appreciation, mistakes etc; vexation or mortification. 

  • A type of leather or skin with a rough surface. 

verb
  • To bother or vex; to mortify. 

reassure

verb
  • To reinsure. 

  • To assure anew; to restore confidence to; to free from fear or self-doubt. 

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