Swale vs Thaw

Swale

name
  • A river, a tributary of the Ure in North Yorkshire, England. 

  • A local government district with borough status in Kent, England, created in 1974 with its headquarters in Sittingbourne and named after the channel 

  • The Swale, a channel between the Isle of Sheppey and the Kentish mainland 

Thaw

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

  • A surname from Burmese. 

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