catamite
noun
cat·a·mite ˈka-tə-ˌmīt 
: a boy kept by a pederast
Word History
Etymology
Latin catamitus, from Catamitus Ganymede, from Etruscan Catmite, from Greek Ganymēdēs
First Known Use
1593, in the meaning defined above
Medical Definition
catamite
noun
cat·a·mite ˈkat-ə-ˌmīt
: a boy kept by a pederast
called also pathic