campfire vs caravansary

campfire

noun
  • A fire at a campground or on a camping trip, often used for cooking, to provide light and heat, to drive away bugs, and as a focal point for sitting around in the evening and talking, telling stories, and singing. 

caravansary

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