citron vs succade

citron

noun
  • A small citrus tree, Citrus medica. 

  • The fruit of a citron tree. 

  • A greenish yellow colour. 

  • The candied rind of the citron fruit. 

adj
  • Of a greenish yellow colour. 

succade

noun
  • Candied citrus peel (or, less commonly, other preserves). 

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