borscht vs hogweed

borscht

noun
  • Any similar sour soup made of other ingredients such as sorrel, cabbage, hogweed 

  • A beetroot soup that can be served hot or cold, usually with sour cream. 

hogweed

noun
  • Any coarse weedy herb. 

  • An umbelliferous plant, of genus Heracleum, most species of which are phototoxic. 

  • Certain plants from the genera Ambrosia, Erigeron, or Heracleum. 

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