delicacy vs piccalilli

delicacy

noun
  • Something appealing, usually a pleasing food, especially a choice dish of a certain culture suggesting rarity and refinement. 

  • The quality of being delicate. 

  • Refinement in taste or discrimination. 

  • Fineness or elegance of construction or appearance. 

  • Tact and propriety; the need for such tact. 

  • Frailty of health or fitness. 

piccalilli

noun
  • A yellow pickle relish made from cauliflower, vegetable marrow, and other vegetables, pickled with vinegar, salt, sugar, and spiced with mustard, turmeric, and other spices. 

  • A pickle, typically on a base of chopped green (unripe) tomatoes, but sometimes finely-chopped gherkins, and possibly including other vegetables. 

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