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gymnasium

/d͡ʒɪmˈneɪ.zi.əm/ noun

Latin root: gymnasium Wiktionary

Origin

From Latin gymnasium, from Ancient Greek γυμνάσιον (gumnásion, “exercise, school”), from γυμνός (gumnós, “naked”), because Greek athletes trained naked.

From Wiktionary, via Kaikki.org (CC BY-SA)