radish vs zest

radish

noun
  • The root of this plant used as food. Some varieties are pungent and usually eaten raw in salads, etc., while others have a milder taste and are cooked. 

  • A plant of the Brassicaceae family, Raphanus sativus or Raphanus raphanistrum subsp. sativus, having an edible root. 

  • With a distinguishing word: some other plant of the Raphanus genus or Brassicaceae family. 

zest

noun
  • The outer skin of a citrus fruit, used as a flavouring or garnish. 

  • General vibrance of flavour. 

  • Enthusiasm; keen enjoyment; relish; gusto. 

  • The woody, thick skin enclosing the kernel of a walnut. 

verb
  • To scrape the zest from a fruit. 

  • To make more zesty. 

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