Blithe vs Cray

Blithe

name
  • A river in Staffordshire, England, which joins the River Trent. 

Cray

name
  • A short river in Greater London which flows into the River Darent. 

  • A surname. 

  • A community (civil parish) in southern Powys, Wales. 

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