A fine coating of oxide (produced by oxidation over a long period of time) on the surface of a metal (particularly copper).

An acquired change in the appearance of something (other than metal or wood).

Dutch: glans, patina, pateen, kopergroen
Polish: grynszpan szlachetny, śniedź, patyna

A gloss or sheen on wooden furniture produced by age, polishing, or handling.