citrus vs harsh

citrus

adj
  • Of, relating to, or similar to citrus plants or fruit. 

noun
  • The fruit of such plants, generally spherical, oblate, or prolate, consisting of an outer glandular skin (called zest), an inner white skin (called pith or albedo), and generally between 8 and 16 sectors filled with pulp consisting of cells with one end attached to the inner skin. Citrus fruits include orange, grapefruit, lemon, lime, and citron. 

  • Any of several shrubs or trees of the genus Citrus in the family Rutaceae. 

harsh

adj
  • Severe or cruel. 

  • Unpleasantly rough to the touch or other senses. 

verb
  • To negatively criticize. 

  • To put a damper on (a mood). 

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