defame vs do down

defame

verb
  • To harm or diminish the reputation of; to disparage. 

  • To charge; to accuse (someone) of an offence. 

  • To disgrace; to bring into disrepute. 

do down

verb
  • To belittle or intimidate 

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