reproach vs tu quoque

reproach

noun
  • A mild rebuke, or an implied criticism. 

  • Disgrace or shame. 

  • An object of scorn. 

verb
  • To disgrace, or bring shame upon. 

  • To criticize or rebuke (someone). 

tu quoque

noun
  • An argument whereby an accusation or insult is turned back on the accuser; same to you 

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