commend vs degrade

commend

verb
  • To recommend. 

  • To entrust or commit to the care of someone else. 

  • To praise or acclaim. 

  • To mention by way of courtesy, implying remembrance and goodwill. 

  • To congratulate or reward. 

degrade

verb
  • To reduce in altitude or magnitude, as hills and mountains; to wear down. 

  • To lower in value or social position. 

  • To reduce in quality or purity. 

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