dejection vs low gear

dejection

noun
  • A low condition; weakness; inability. 

  • The act of humbling or abasing oneself. 

  • A state of melancholy or depression; low spirits, the blues. 

low gear

noun
  • The lowest gear available from a gearbox, typically in a motor vehicle or cycle. 

  • One of the lower gears available from a gearbox, typically in a motor vehicle or cycle. 

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