commend vs recommend

commend

verb
  • To praise or acclaim. 

  • To recommend. 

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

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

  • To congratulate or reward. 

recommend

verb
  • To bestow commendation on; to represent favourably; to suggest, endorse or encourage as an appropriate choice. 

  • To make acceptable; to attract favor to. 

  • To advise, propose, counsel favorably 

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