aftertale vs appendix

aftertale

noun
  • A postscript added to the end of a story. 

  • A postscript added where a story should end. 

  • Evil talk; slander; defamation. 

appendix

noun
  • A text added to the end of a book or an article, containing additional information. 

  • Any process, prolongation, or projection. 

  • The vermiform appendix. 

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