FED vs Jock

FED

name

  • Federal Reserve System. Alternative spelling of Fed 

noun

  • Field emission display. 

Jock

name

  • A given name. 

  • A nickname. 

  • A surname. 

noun

  • A Scot. 

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