myomancy

From Ancient Greek μῦς (mûs, “mouse”); myo- +‎ -mancy.

myomancy (uncountable)

1. Divination by interpreting rats or mice. Their cries were believed to indicate the presence of evil.
   • 1855 Elihu Rich in Smedley et al. Occult Sci.

     Myomancy was a method of divination by rats and mice, and is supposed to be alluded to in Isaiah lxvi. 17. Their peculiar cries, or some marked devastation committed by them, was taken for a prognostic of evil.

   • 1865, Samuel Lysons, Our British Ancestors: Who and what Were They?:

     Pliny has a chapter on myomancy, or soothsaying by means of rats and mince, (Nat. Hist., lib. ix. c. 57).

   • 1903 Daniels & Stevans Encyc. Occult Sci.

     Myomancy - Made use of the sounds and damage done by rats. The great Dictator Fabius Maximus renounced his throne when warned by the squeal of a mouse and Cassius Flaminius threw up his command of cavalry.

   • 1973, K. Ellis, Prediction and Prophecy iii:

     Myomancy. Divination by mice or rats, for instance, rats leaving a sinking ship.