How to say blackening in different languages

You can say blackening as schwärzen, brünieren in the following countries: Austria; Germany; Liechtenstein; Switzerland;

You can say blackening as annerimento, niellatura in the following countries: Italy; San Marino;

You can say blackening as чарненне in the following countries: Belarus;

You can say blackening as černění in the following countries: Czechia;

You can say blackening as чернение in the following countries: Russia;

You can say blackening as siyah in the following countries: Turkey;

You can say blackening as чорніння in the following countries: Ukraine;