ὑπομνηστέον
From LSJ
καὶ ὑποθέμενος κατὰ τῆς κεφαλῆς φέρειν τὰς πληγάς, ὡς ἐν ἐκείνῃ τοῦ τε κακοῦ τοῦ πρὸς ἀνθρώπους → and having instructed them to bring their blows against the head, seeing that the harm to humans ... (Josephus, Antiquities of the Jews 1.50)
English (LSJ)
A one must remind, τινά τινος S.E.P.3.70; one must warn, τινα Ph.1.383. 2 one must make mention, τινος Arist.Rh.Al.1436b29. 3 one must provoke, τὰς ἐκκρίσεις Herod. Med. in Rh.Mus.58.75.
Greek (Liddell-Scott)
ὑπομνηστέον: ῥηματικ. ἐπίθ., πρέπει τις νὰ ὑπομνήσῃ, τινά τινος Σέξτ. Ἐμπ. π. Π. 3. 70. 3) πρέπει τις νὰ μνημονεύσῃ ἢ «ἀναφέρῃ», τινὸς Ἀριστ. Ρητορ. πρ. Ἀλέξ. 30, 7.