divination vs dowsing

divination

noun
  • The apparent art of discovering secrets or the future by preternatural means. 

  • The act of divining; a foreseeing or foretelling of future events. 

  • An indication of what is to come in the future or what is secret; a prediction. 

dowsing

noun
  • The practice of seeking water or other substances (usually liquid) with the aid of a forked stick or similar pointing device, as believed by some practitioners to derive from supernatural power. 

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