Bar vs Serene

Bar

name
  • Nickname from the female given name Barbara. 

  • A town and municipality of Montenegro 

  • A city in Zhytomyr Oblast, Ukraine 

Serene

name
  • A female given name from English. A rare variant of Serena. 

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