In Italian “rugginito” means “rusty” (= oxidized iron) and “ruggine” mean “rust” (= oxidized iron).

referred to a key as “rusty” it must mean (soon) “worked with lot of friction”.

The etymology is, either from Latin ” rubiginem ” (rubeus = red) or ” aeruginem ” (copper oxide), which is greenish rather than redish. The latter is also supported from the former link.

What are the pros and

cons that I can find here in Italy.

In Italian “rugginito” means “rusty” (= oxidized iron) and “ruggine” mean “rust” (= oxidized iron).

referred to a key as “rusty” it must mean (soon) “worked with lot of friction”.

The etymology is, either from Latin ” rubiginem ” (rubeus = red) or ” aeruginem ” (copper oxide), which is greenish rather than redish. The latter is also supported from the former link.

What are the pros and

cons that I can find here in Italy.