academe vs prep school

academe

noun
  • An academy; a place of learning. 

  • The name of the garden in Athens where the academics met. 

  • A senior member of the staff at an institution of higher learning; pedant. 

  • The scholarly life, environment, or community. 

prep school

noun
  • A private or public school intended to prepare its students to get into prestigious universities. 

  • A private primary school which prepares its pupils for the common entrance examination most commonly at the age of thirteen, and subsequent entry into public school. 

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