pat ‧ i ‧ na /ˈpætənə, ˈpætɪnə $ pəˈtiːnə/ BrE AmE noun [singular]
[ Date: 1700-1800 ; Language: Latin ; Origin: 'plate' ]
1 . a greenish layer that forms naturally on the surface of ↑ copper or ↑ bronze
2 . a smooth shiny surface that gradually develops on wood, leather etc
3 . a patina of wealth/success etc the appearance of being wealthy, successful etc