commend vs undervalue

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. 

undervalue

noun
  • An undervaluation; a price or rate below the actual worth. 

verb
  • To underestimate, or assign too low a value to. 

  • To have too little regard for. 

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