Hermes Trismegistus (Ancient Greek: Ἑρμῆς 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. Alternate names: Hermès Trismégiste, Hermes Trismegistro, Hermes Trimegistro, Hermes Trismegisto, Hermes Trimegisto.