cray vs dotty

cray

adj

  • Crazy. 

noun

  • A crayfish or lobster. 

dotty

adj

  • Mildly insane or eccentric; often, senile. 

  • Having many dots. 

noun

  • A shotgun. 

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