Brownie vs Cocoa

Brownie

name

  • A nickname of the surname Brown. 

noun

  • A junior Girl Scout. 

  • A junior Girl Guide. 

Cocoa

name

  • A unisex given name. 

  • A city in Brevard County, Florida, United States. 

  • an object-oriented programming API for macOS 

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