recondition

This term describes a process of restoration that goes beyond simple repair. While "repair" suggests fixing a specific broken part, "recondition" implies a comprehensive overhaul intended to return an object to a state resembling its original factory specifications or peak performance.

In technical and industrial contexts, it is frequently used for heavy machinery, engines, and electronics. When applied to materials like leather or hair, it refers to the chemical restoration of moisture and flexibility, distinguishing it from "cleaning," which merely removes surface dirt.