body of water vs loch

body of water

noun
  • Any significant accumulation of water, usually covering the Earth or another planet, such as an ocean, a river, lake or a bay. 

  • Used other than figuratively or idiomatically: see body, of, water. 

loch

noun
  • A bay or arm of the sea. 

  • A lake. 

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