γυμνοπαιδίαι

αἱ
A. festival at Sparta, at which naked boys danced and went through gymnastic exercises, Hdt. 6.67, Th. 5.82, etc.: later in sg., Plu. 2.208d; ἡ τῶν Λυκαίων γ., = Lupercalia, D.C. 44.11.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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