Lexical Definition

‎διόρθωσις‎ diórthōsis (dee-or'-tho-sis) reformation ^G:N-F
from a compound of ‎διά‎ and a derivative of ‎ὀρθός‎, meaning to straighten thoroughly

reformation.

• rectification, i.e. (specially) the Messianic restauration

Abbott-Smith

* διόρθωμα, -τος, τό (< διορθόω, to make straight, set right),
a correction, reform: Ac 24:3.†

Abbott-Smith References

Liddell-Scott-Jones

διόρθωσις-ωσις, εως, ἡ,

making straight, as in the setting of a limb, [Refs 5th c.BC+]; setting straight, restoration, οἰκοδομημάτων καὶ ὁδῶν [Refs 4th c.BC+]

__2 correction, chastisement, ἐπὶ διορθώσει [Refs 2nd c.BC+]
__II generally, amendment, correction, of men, [Refs 4th c.BC+]; correction, ἐρωτημάτων [Refs 4th c.BC+]; δ., opposed to βλάβη, [Refs 4th c.AD+]
__II.2 right treatment, τινός [Refs 5th c.BC+]
__III recension, revised edition of a work, [Refs 8th c.BC+]: in plural, emendations, [Refs 3rd c.AD+]
__IV payment, ὀψωνίων [Refs 2nd c.BC+]