rejuvenate

Rejuvenate is a verb meaning to restore to a more youthful state or to renew vitality, energy, or appearance. It can refer to a literal restoration of youth in living beings, or to the refreshing of an object, system, or environment.

Etymology: The word comes from the Latin root juvenil- meaning young, with the prefix re- indicating renewal. It entered English in the 17th century via French or Latin precursors to convey the sense of becoming young again.

Medical and cosmetic usage: In medicine and cosmetics, rejuvenation refers to procedures or therapies intended to reverse signs of aging or restore function. Cosmetic techniques include facelifts, botulinum toxin injections, dermal fillers, laser resurfacing, and chemical peels. In research, rejuvenation describes interventions aiming to restore youthful characteristics at cellular or organismal levels, including stem cell therapies, telomere maintenance, and removing senescent cells.

Broader use: The term is also used metaphorically to describe renewing energy in people, organizations, or environments, such as rejuvenating a brand, a neighborhood, or technology.