colophon vs dedication

colophon

noun
  • A printer's or publisher's identifying inscription or logo appearing at the front or end of a book, or the same appearing on the spine or dust jacket. 

  • A page on a website identifying the details of its creation, such as the author's name and the technologies used. 

  • In manuscripts (typically before the invention of printing), the note, usually at the end, left by the scribe who copied it, giving information on their exemplar, where and when the copy was made, and sometimes, their own name. 

dedication

noun
  • A note addressed to a patron or friend, prefixed to a work of art as a token of respect, esteem, or affection. 

  • The deliberate or negligent surrender of all rights to property. 

  • A ceremony marking an official completion or opening. 

  • The act of dedicating or the state of being dedicated. 

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