Emerald vs Olive Green

Emerald

name

  • The Rural Municipality of Emerald No. 277, a rural municipality in eastern Saskatchewan, Canada. 

  • A town in Queensland, Australia. 

  • A female given name from English. 

Olive Green

name

  • An unincorporated community in Delaware County, Ohio, United States. 

  • An unincorporated community in Noble County, Ohio, named after Olive Green Creek. 

  • A hamlet in Hamstall Ridware parish, Lichfield district, Staffordshire, England (OS grid ref SK1118). 

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