crazy vs kook

crazy

noun
  • An insane or eccentric person; a crackpot. 

  • Eccentric behaviour; lunacy; craziness. 

adv
  • Very, extremely. 

adj
  • Out of control. 

  • Of unsound mind; insane; demented. 

  • In love; experiencing romantic feelings. 

  • Very excited or enthusiastic. 

  • Very unexpected; wildly surprising. 

kook

noun
  • An eccentric, strange or crazy person. 

  • A boardsport participant who lacks style or skill; a newbie who acts as if they are better at the sport than they are. 

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