الإِغَارَةُ وَالْمَسْخُ
Taking an earlier idea and changing the wording or form in which it is expressed.
The terms suggest seizing and altering an existing form. In literary analysis, the focus is how the later formulation transmits the earlier meaning and whether it improves or weakens expression.
Its merits cannot be decided merely by checking verbal resemblance: clarity, suitability of diction, and rhetorical impact must also be assessed.