cacophony vs jarring

cacophony

noun
  • A mix of discordant sounds; dissonance. 

jarring

noun
  • A feeling or movement that jars or jolts. 

  • Storage in jars. 

adj
  • That jars (clashes or disagrees); incongruous, conflictful. 

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