Clinch vs Swat

Clinch

name
  • A river in Virginia and Tennessee, United States, a tributary of the Tennessee River, named after an 18th century explorer. 

  • A surname. 

Swat

name
  • a river in NWFP administrative province of Pakistan 

  • a valley and a district in NWFP administrative province of Pakistan 

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