τακτέον
From LSJ
συνετῶν μὲν ἀνδρῶν, πρὶν γενέσθαι τὰ δυσχερῆ, προνοῆσαι ὅπως μὴ γένηται· ἀνδρείων δέ, γενόμενα εὖ θέσθαι → it is the part of prudent men, before difficulties arise, to provide against their arising; and of courageous men to deal with them when they have arisen
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.
