marvel vs wonderkid

marvel

noun
  • That which causes wonder; a prodigy; a miracle. 

verb
  • To become filled with wonderment or admiration; to be amazed at something. 

wonderkid

noun
  • A child prodigy; (if male) a golden boy 

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