dearest vs sugar-plum

dearest

noun
  • A beloved person; a term of endearment. 

sugar-plum

noun
  • Term of endearment: sweetheart, darling. 

  • A round or oval sweet/piece of candy made of boiled sugar. 

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