courtship vs fling

courtship

noun
  • The act of wooing a person to enter into a romantic relationship or marriage; hence, the period during which a couple fall in love before their marriage. 

  • The behaviour exhibited by an animal to attract a mate. 

  • The act of trying to solicit a favour or support from someone. 

fling

noun
  • A short romantic, oftentimes sexual, relationship. 

  • An act of throwing, often violently. 

  • An attempt, a try (as in "give it a fling"). 

  • A lively Scottish country dance. 

  • An act or period of unrestrained indulgence. 

  • An act of moving the limbs or body with violent movements, especially in a dance. 

verb
  • To throw with violence or quick movement; to hurl. 

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