Scot vs Scotch

Scot

noun
  • A person born in or native to Scotland. 

name
  • A male given name transferred from the surname, of rare usage, variant of Scott. 

Scotch

noun
  • The people of Scotland. 

  • A glass of Scotch. 

  • Whisky distilled in Scotland, especially from malted barley. 

  • Any variety of Scotch. 

name
  • The opening 1. e4 e5 2. Nf3 Nc6 3. d4. 

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