amplify vs dampen

amplify

verb
  • To render larger, more extended, or more intense. 

  • To add content that is not present in the source text to the target text, usually to improve the fluency of the translation. 

  • To increase the amplitude of something, especially of an electric current. 

  • To enlarge by addition or commenting; to treat copiously by adding particulars, illustrations, etc.; to expand. 

dampen

verb
  • To become damp or moist. 

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

  • To become damped or deadened. 

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

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