dampen vs excite

dampen

verb
  • To lessen; to dull; to make less intense (said of emotions and non-physical things). 

  • To become damped or deadened. 

  • To become damp or moist. 

  • To make damp or moist; to make moderately wet. 

excite

verb
  • To arouse or bring out (e.g. feelings); to stimulate. 

  • To cause an electron to move to a higher than normal state; to promote an electron to an outer level. 

  • To energize (an electromagnet); to produce a magnetic field in. 

  • To stir the emotions of. 

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