Hermes Trismegistus (Ancient Greek: ὁ Τρισμέγιστος, "thrice-greatest Hermes"; Latin: Mercurius ter Maximus) is the purported author of the Hermetic Corpus, a series of sacred texts that are the basis of Hermeticism.
Hermes Trismegistus may be a representation of the syncretic combination of the Greek god Hermes and the Egyptian god Thoth. Greeks in Hellenistic Egypt recognized the equivalence of Hermes and Thoth. Consequently, the two gods were worshiped as one, in what had been the Temple of Thoth in Khemnu, which the Greeks called Hermopolis.
Both Hermes and Thoth were gods of writing and of magic in their respective cultures. Hermes, the Greek god of interpretive communication, was combined with Thoth, the Egyptian god of wisdom, to become the patron of astrology and alchemy. In addition, both gods were psychopomps, guiding souls to the afterlife. The Egyptian priest and polymath Imhotep had been deified long after his death and therefore assimilated to Thoth in the classical and Hellenistic period. The renowned scribe Amenhotep and a wise man named Teôs were co-equal deities of wisdom, science, and medicine; and, thus, they were placed alongside Imhotep in shrines dedicated to Thoth-Hermes during the Ptolemaic period.
A Mycenaean Greek reference to a deity or semi-deity called ti-ri-se-ro-e (Linear B: ...
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