cicisbeo vs sugar baby

cicisbeo

noun
  • A man who escorts a married woman to social functions, especially in 18th-century Italy; a married woman's lover. 

sugar baby

noun
  • The younger recipient (usually female or a bottom) of interest from a sugar daddy or sugar mama, especially financial and romantic in an intergenerational relationship 

  • A term of endearment; sweetheart. 

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