debut vs epilogue

debut

noun
  • The first public presentation of a theatrical play, motion picture, opera, musical composition, dance, or other performing arts piece. 

  • The first appearance of a debutante in society. 

  • A performer's first performance to the public, in sport, the arts or some other area. 

  • The coming-of-age celebration of a woman's eighteenth birthday. 

verb
  • to formally introduce, as to the public 

  • to make one's initial formal appearance 

epilogue

noun
  • A short speech, spoken directly at the audience at the end of a play 

  • A component of a computer program that prepares the computer to return from a routine. 

  • The performer who gives this speech 

  • A brief oration or script at the end of a literary piece; an afterword 

verb
  • To conclude with an epilogue. 

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