disparage vs get after

disparage

verb
  • To ridicule, mock, discredit. 

  • To dishonor by a comparison with what is inferior; to lower in rank or estimation by actions or words; to speak slightingly of; to depreciate; to undervalue. 

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 disparage and get after occurred in a corpus of books? (source: Google Ngram Viewer )