Waver vs Winterbourne

Waver

name
  • A river in northern Cumbria, England, which flows into the Solway Firth. 

Winterbourne

name
  • A large village and civil parish in South Gloucestershire district, Gloucestershire, England (OS grid ref ST6580). 

  • Any of several villages in Britain. 

  • A surname from Old English. 

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