Mudlark, you might be interested in the following. This is an excerpt from a longer article about Hermes Trismegistus, which I found by Googling "Hermes Trismegistus".


The alleged teacher of the magical system known as Hermetism of which high magic and alchemy are thought to be twin branches. The name Trismegistus means thrice greatest Hermes, and is the
title given by the Greeks to the Egyptian god Thoth or Tehuti, a lord of wisdom and learning.

At one time the Greeks thought two gods inseparable. Thoth governed over mystical wisdom,
magic, writing and other disciplines and was associated with healing, while Hermes was the
personification of universal wisdom and the patron of magic.

Dave Oesterreich