aftertale vs postamble

aftertale

noun
  • A postscript added where a story should end. 

  • Evil talk; slander; defamation. 

  • A postscript added to the end of a story. 

postamble

noun
  • Closing statements of a computer program; final or closing part of data. 

  • A short concluding statement or remark, especially summarizing a formal document or statute. 

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