delinquent vs weathercock

delinquent

noun
  • One who disobeys or breaks rules or laws, or who acts against another's wishes. 

  • A royalist in the First English Civil War (1642-1646). 

  • A person who has not paid their debts. 

adj
  • Failing in or neglectful of a duty or obligation; guilty of a misdeed or offense 

  • Late or failing to pay a debt or other financial obligation, like a mortgage or loan. 

weathercock

noun
  • One who veers with every change of current opinion; a fickle, inconstant person. 

  • A weather vane, sometimes in the form of a cockerel. 

  • A kind of wind pump whose top behaves like a weather vane, moving with the wind direction, but which also has a wheel attached to measure wind speed. 

verb
  • To act as a weathercock for. 

  • To turn upwind because of the difference in water pressure on two sides. 

  • To veer into the direction of the oncoming (relative) wind. 

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