ἐφηβεῖον
From LSJ
ο φίλος τον φίλον εν πόνοις και κινδύνοις ου λείπει → a friend does not abandon his friend in difficulties and in danger, a friend in need is a friend indeed
English (LSJ)
τό,
A principal court in the παλαίστρα, Vitr.5.11.2.
German (Pape)
[Seite 1116] τό, Uebungsort für die Jünglinge, neben γυμνάσια Strab. 5, 4, 7; Vitruv. 5, 11.
Greek (Liddell-Scott)
ἐφηβεῖον: τό, μέρος πρὸς γύμνασιν τῶν ἐφήβων, Στράβ. 246: ἐντεῦθεν ὡς ἀρχιτεκτονικὸς ὅρος, Βιτρούβ. 5. 11, 1.