διόρθ-ωμα · diorth-ōma — LSJ
making straight, setting right, Hp. Art. 33 (pl.); instrument or means of setting right, δ. τι ἐντιθέναι εἰς . . ib. 37; means of correction, Arist. Pol. 1284b20.
amendment, Plu. Num. 17; revision, νόμου PRev.Laws 57.1 (iii B. C.).