μενετέον
From LSJ
καλῶς γέ μου τὸν υἱὸν ὦ Στιλβωνίδη εὑρὼν ἀπιόντ' ἀπὸ γυμνασίου λελουμένον οὐκ ἔκυσας, οὐ προσεῖπας, οὐ προσηγάγου, οὐκ ὠρχιπέδισας, ὢν ἐμοὶ πατρικὸς φίλος → Ah! Is this well done, Stilbonides? You met my son coming from the bath after the gymnasium and you neither spoke to him, nor kissed him, nor took him with you, nor ever once felt his balls. Would anyone call you an old friend of mine?
English (LSJ)
(μένω)
A one must remain, Pl.R.328b, X.HG3.2.9, etc.
Greek (Liddell-Scott)
μενετέον: ῥημ. ἐπίθ. τοῦ μένω, δεῖ μένειν, Πλάτ. Πολ. 328Β, Ξεν., κτλ.· πρβλ. Λοβεκ. Φρύν. 446. Ἴδε μενητέον.
Greek Monotonic
μενετέον: ρημ. επίθ., αυτό που πρέπει να παραμείνει, σε Πλάτ., Ξεν.