indictment vs mea culpa

indictment

noun
  • An accusation of wrongdoing; a criticism or condemnation. 

  • The official legal document outlining the charges concerned; bill of indictment. 

  • Evidence of failure or poor performance. 

  • An official formal accusation for a criminal offence, or the process by which it is brought to a jury. 

mea culpa

noun
  • An instance of mea culpa; an apology. 

intj
  • My fault, due to my error; I am to blame. 

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