Blithe vs Blythe

Blithe

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

Blythe

name
  • A river in Warwickshire and West Midlands, England, United Kingdom, which joins the River Tame north-east of Coleshill, Warwickshire. 

  • A female given name transferred from the surname, reinforced by the word blithe. 

  • A surname from Old English either derived from a nickname, or from the English places. 

  • A city in Riverside County, California, United States. 

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