jaggery vs sugar-plum

jaggery

noun
  • A small-scale production plant that processes sugar cane to make sugar. 

  • A traditional dark-brown unrefined sugar made from palm tree sap which is used throughout South and Southeast Asia; (by extension) other types of unrefined sugar. 

sugar-plum

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

  • Term of endearment: sweetheart, darling. 

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