Sow vs Wear

Sow

name
  • A river in Staffordshire, England, which joins the River Trent. 

  • A surname. 

Wear

name
  • A river in the counties of County Durham and Tyne and Wear, north east England. The cities of Durham and Sunderland are situated upon its banks. 

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