deprecate vs get after

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. 

get after

verb
  • To attempt to convince another to move into action. 

  • To move into action in pursuit of something. 

  • To move into action in attempt to catch or defeat another. 

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