jo vs sugar beet

jo

noun
  • Darling, sweetheart. 

  • The staff used in the Japanese martial art of jodo or jojutsu. 

sugar beet

noun
  • darling; sweetheart 

  • A type of beet whose root contains a high concentration of sucrose. 

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