προσεκδεκτέον
From LSJ
πάντων χρηµάτων µέτρον ἐστίν ἄνθρωπος, τῶν µέν ὄντων ὡς ἐστιν, τῶν δέ οὐκ ὄντων ὡς οὐκ ἔστιν → man is the measure of all things, of things which are, that they are, and of things which are not, that they are not (Protagoras fr.1)
English (LSJ)
(as if from *προσεκδέχομαι) one must understand a thing in a certain sense besides, Sch.A.R.3.601.
Greek (Liddell-Scott)
προσεκδεκτέον: ῥηματ. ἐπίθ. ὡς ἐκ ῥήματ. προσεκδέχομαι, πρέπει τις προσέτι νὰ παραδεχθῇ τι ὡς ἔχον οὕτω κτλ., Σχόλ. εἰς Ἀπολλ. Ρόδ. Γ. 601.