Blue vs Emerald

Blue

name

  • A female given name from English, typically used in conjoined names like Bonnie Blue or Blue Bell. 

  • A male nickname, occasionally used as a formal given name. 

  • A surname from German. An anglicization of German Blau. 

noun

  • Synonym of British Blue (“a breed of cat”) 

  • A member of the Royal Horse Guards (which merged with the 1st Dragoons in 1969) 

  • A letterman at Oxford or Cambridge. 

Emerald

name

  • A female given name from English. 

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

  • A town in Queensland, Australia. 

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