Deluge vs Thaw

Deluge

name
  • The Biblical flood taking place in the story of Noah in Genesis. 

Thaw

name
  • A river in South Wales which flows into the Bristol Channel at Aberthaw. 

  • A surname from Burmese. 

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