deprecate vs recommend

deprecate

verb
  • To belittle or express disapproval of. 

  • To declare something obsolescent; to recommend against a function, technique, command, etc. that still works but has been replaced. 

recommend

verb
  • To make acceptable; to attract favor to. 

  • To advise, propose, counsel favorably 

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

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