Cocker vs Sound

Cocker

name
  • A river in Cumbria, England, which joins the Derwent at Cockermouth. 

  • A surname. 

  • A short river in Lancashire, England, which flows into the Lune estuary. 

Sound

name
  • Synonym of Plymouth Sound, Devon, England. 

  • The strait that separates Zealand (an island of Denmark) from Scania (part of Sweden); also sometimes called by the Danish name, Øresund. 

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