Patina

pa·ti·na /pəˈtēnə/

noun: patina; plural noun: patinas

: a green or brown film on the surface of bronze or similar metals, produced by oxidation over a long period.

- a gloss or sheen on a surface resulting from age or polishing.

- the impression or appearance of something.

“[…] In his account of Japan the journalist Ovchinnikov wrote: 'It is considered that time, per se, helps to make known the essence of things. The Japanese therefore sec a particular charm in the evidence of old age. They are attracted to the darkened tone of an old tree, the ruggedness of a stone, or even the scruffy look of a picture whose edges have been handled by a great many people. To all these signs of age they give the name, saba, which literally means "rust". Saba, then, is a natural rustiness, the charm of olden days, the stamp of time. [ — or patina — A.T.]”

― Andrei Tarkovsky

Sculpting in Time