coquetry vs rain check

coquetry

noun
  • Coquettish behaviour; actions designed to excite erotic attention, without intending to reciprocate such feelings (chiefly of women towards men); flirtatious teasing. 

  • An act constituting such behaviour; an affectation of amorous interest or enticement, especially of a woman directed towards a man. 

rain check

noun
  • In social interactions, a deferred invitation, or deferred acceptance of an invitation. 

  • to make good on any experience that the customer deems unsatisfactory. 

  • A reissue, at no extra charge, of a ticket for a baseball game or other outdoor event postponed or interrupted because of rain. 

  • to provide a sold-out item or temporarily unavailable service at a later date for the running (usually special) price. 

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