haruspex

noun

1. A soothsayer or priest in Ancient Rome (originally Etruscan) who practiced haruspicy, divination by inspecting entrails.

   “If it be lawfull for Panæcius to maintaine his judgement about Aruspices, Dreames, Oracles and Prophecies[…]: Wherfore shall not a wise-man dare that in all things, which this man dareth in such as he hath learned of his Masters?”

   “All of this is nonsense, but so are all attempts to look at a few successes and a few failures and make fatuous generalizations based on coincidence. Etruscan and Roman haruspices did the same thing with the entrails of chickens.”