anguish vs vex

anguish

verb
  • To suffer pain. 

  • To cause to suffer pain. 

noun
  • Extreme pain, either of body or mind; excruciating distress. 

vex

verb
  • To cause (mental) suffering to; to distress. 

  • To toss back and forth; to agitate; to disquiet. 

  • To twist, to weave. 

  • To annoy, irritate. 

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