nitpick vs reproach

nitpick

verb
  • To correct insignificant mistakes or find fault in unimportant details. 

reproach

verb
  • To criticize or rebuke (someone). 

  • To disgrace, or bring shame upon. 

noun
  • A mild rebuke, or an implied criticism. 

  • Disgrace or shame. 

  • An object of scorn. 

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