forepart vs frontispiece

forepart

noun
  • The front or anterior part of something. 

frontispiece

noun
  • A façade, especially an ornamental one. 

  • An illustration that is on the page before the title page of a book, a section of one, or a magazine. 

  • A small ornamental pediment, especially at the top of a window or door. 

verb
  • To supply with a frontispiece. 

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