Acronyms that contain the term Trismegistus 

trismegistus

Hermes Trismegistus (from Ancient Greek: Ἑρμῆς ὁ Τρισμέγιστος, "Hermes the Thrice-Greatest"; Classical Latin: Mercurius ter Maximus) is a legendary Hellenistic figure that originated as a syncretic combination of the Greek god Hermes and the Egyptian god Thoth. He is the purported author of the Hermetica, a widely diverse series of ancient and medieval pseudepigraphical texts that lay the basis of various philosophical systems known as Hermeticism. The wisdom attributed to this figure in antiquity combined a knowledge of both the material and the spiritual world, which rendered the writings attributed to him of great relevance to those who were interested in the interrelationship between the material and the divine.The figure of Hermes Trismegistus can also be found in both Islamic and Baháʼí writings. In those traditions, Hermes Trismegistus has been associated with the prophet Idris.

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