bonbon vs dragée

bonbon

noun
  • A sweet, especially a small chocolate-covered candy. 

  • A small, spherical savory snack or canapé. 

  • A Christmas cracker. 

dragée

noun
  • A sweet or confection, originally used to administer drugs, medicine, etc. 

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