commend vs look down on

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. 

look down on

verb
  • To regard or treat as inferior. 

  • To view [people or events on Earth] from the vantage point of the afterlife (originally, Heaven) 

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