adoptee vs progeny

adoptee

noun
  • An adopted son or daughter. 

  • Synonym of adopter 

  • A person who was adopted as a child. 

progeny

noun
  • Offspring or descendants considered as a group. 

  • A result of a creative effort. 

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