Ganymede vs philerast

Ganymede

noun
  • A boy kept for pederastic purposes; a catamite. 

  • A servant boy or young waiter, particularly one who serves liquor. 

name
  • A Trojan boy who was abducted (either by Zeus or Eos), and ultimately became immortal in order to be Zeus' cupbearer. 

  • A moon of Jupiter. 

philerast

noun
  • A boy who feels philia or more specifically anterōs, for his paederastic lover. 

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