τακτέον
From LSJ
τὸ βέλτερον κακοῦ καὶ τὸ δίμοιρον αἰνῶ, καὶ δίκᾳ δίκας ἕπεσθαι, ξὺν εὐχαῖς ἐμαῖς, λυτηρίοις μηχαναῖς θεοῦ πάρα → I approve the better kind of evil, the two-thirds kind, and that, in accordance with my prayers, through contrivances bringing salvation at the god’s hand
English (LSJ)
one must arrange in order, Pl.Lg.631d, Str.9.3.9, Gal. 18(1).780, etc.
Russian (Dvoretsky)
τακτέον: adj. verb. к τάσσω.