Axe vs Waver

Axe

name
  • A river in Somerset, England, which flows into the Bristol Channel at Weston-super-Mare. 

  • A river in Dorset, Somerset, and east Devon, England, which flows into Lyme Bay at Seaton. 

Waver

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

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