properly, "a making straight" (dia, "through," orthos, "straight;" cp. diorthoma in Acts 24:2; see CORRECTION , No. 1), denotes a "reformation" or reforming, Hebrews 9:10; the word has the meaning either (a) of a right arrangement, right ordering, or, more usually, (b) of restoration, amendment, bringing right again; what is here indicated is a time when the imperfect, the inadequate, would be superseded by a better order of things, and hence the meaning (a) seems to be the right one; it is thus to be distinguished from that of Acts 24:2 , mentioned above. The word is used in the papyri in the other sense of the rectification of things, whether by payments or manner of life.
With over 3,400 entries, this timeless classic is THE reference guide to New Testament Greek words for English readers. It explains the meaning of the original Greek with the added dimension of the context of the Greek word.Wikipedia
Read More