desilverize

[ dee-sil-vuh-rahyz ]
/ diˈsɪl vəˌraɪz /

verb (used with object), de·sil·ver·ized, de·sil·ver·iz·ing.

Also especially British, de·sil·ver·ise.

Origin of desilverize

First recorded in 1865–70; desilver + -ize