The deliberate process of making something (such as an antique) appear (or, in science fiction, become) older than it is.
3
Becoming senescent; accumulating damage to macromolecules, cells, tissues and organs with the passage of time; progressing loss of health, mobility, vibrancy and body functionality, resulting in biological death.
4
Wear, wear and tear.
adjective
1
Becoming elderly.
The aging artist could no longer steadily hold the brush.