depreciation vs disparagement

depreciation

noun
  • The state of being depreciated; disparagement. 

  • The decline in value of assets. 

  • The measurement of the decline in value of assets. Not to be confused with impairment, which is the measurement of the unplanned, extraordinary decline in value of assets. 

disparagement

noun
  • The act of disparaging, of belittling. 

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