irritate vs umbrage

irritate

verb
  • To cause or induce displeasure or irritation. 

  • To induce pain in (all or part of a body or organism). 

  • To provoke impatience, anger, or displeasure in. 

umbrage

verb
  • To displease or cause offense. 

  • To shade. 

noun
  • A feeling of doubt. 

  • Leaves that provide shade, as the foliage of trees. 

  • A feeling of anger or annoyance caused by something offensive. 

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