Axe vs Estuary

Axe

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

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

Estuary

name
  • Estuary English 

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