diviner vs haruspex

diviner

noun
  • One who searches for underground objects or water using a divining rod. 

  • One who divines or conjectures. 

  • One who foretells the future. 

haruspex

noun
  • A soothsayer or priest in Ancient Rome (originally Etruscan) who practiced divination by inspecting entrails. 

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