cookshack vs restaurant

cookshack

noun
  • A simple building where food is cooked, for example in a logging settlement. 

restaurant

noun
  • An eating establishment in which diners are served food, usually by waiters at their tables but sometimes (as in a fast food restaurant) at a counter. 

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