bayou vs body of water

bayou

noun
  • A swamp; a marshy (stagnant) body of water. 

  • A slow-moving, often stagnant creek or river. 

body of water

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

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

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