Boo vs Kettle

Boo

name
  • A community in Nacka, Stockholm, central Sweden. 

  • The Boko language. 

Kettle

name
  • A village in Fife council area, near Cupar in Scotland. 

  • A surname. 

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