phenom vs wonderchild

phenom

noun
  • Someone or something that is phenomenal, especially a young player in sports like baseball, American football, basketball, tennis, and golf. 

  • One who is hip and fashionable. 

wonderchild

noun
  • A child prodigy. 

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