body of water vs wetness

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. 

wetness

noun
  • The condition of being wet. 

  • Moisture. 

  • Rainy or damp weather. 

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