Idle vs Pool

Idle

name
  • A suburb in the City of Bradford, West Yorkshire, England (OS grid ref SE1737). 

  • A surname. 

  • A river, the River Idle in Nottinghamshire, England, which flows into the River Trent. 

Pool

name
  • A civil parish in the Metropolitan Borough of Leeds, West Yorkshire, England, also known as Pool in Wharfedale. 

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