Carol vs Carrol

Carol

name
  • A female given name from the Germanic languages, popular in the middle of the 20th century. 

  • A male given name from the Germanic languages. 

Carrol

name
  • A female given name from the Germanic languages, of less common usage, variant of Carol. 

  • A surname from Irish, a less common spelling of Carroll, derived from the Irish Ó Cearbhaill. 

  • A male given name transferred from the surname. 

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