1583, in the meaning defined above
Medieval Latin, from Greek Hermēs trismegistos, literally, Hermes thrice greatest
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“Hermes Trismegistus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Hermes%20Trismegistus. Accessed 9 Aug. 2022.
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