bemoan vs commend

bemoan

verb
  • To be dismayed or worried about (someone), particularly because of their situation or what has happened to them. 

  • To moan or complain about (something). 

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. 

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