kook vs nutso

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. 

nutso

noun
  • A crazy person; a crackpot or lunatic. 

  • Craziness; insanity. 

adv
  • In a crazy manner. 

  • Madly; extremely or obsessively. 

adj
  • Obsessed; overly enthusiastic. 

  • Ridiculous; unbelievable or silly. 

  • Crazy, insane. 

  • Fraught or out of control. 

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