patina (pat¦ina)

noun

• a green or brown film on the surface of bronze or similar metals, produced by oxidation over a long period: many bronzes have been overcleaned, their original patina removed and artificially replaced
• a gloss or sheen on wooden furniture produced by age and polishing: the dining table will acquire a warm patina with age figurative plankton added a golden patina to the shallow, slowly moving water
• the impression or appearance of something: he carries the patina of old money and good breeding