kookie vs kooky

kookie

noun
  • kookaburra (Dacelo novaeguineae) 

kooky

adj
  • Eccentric, strange, or foolish; crazy or insane; kookish. 

  • Behaving like a kook (a person with poor style or skill); kook-like. 

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