riza

1. formal (in church) vestment; chasuble
   Na ikoni je svetitelj prikazan u zlatnoj rizi. — On the icon the saint is depicted in a golden vestment.
2. formal (on an icon) icon cover; riza
   U katalogu piše da ikona ima srebrnu rizu iz osamnaestog veka. — The catalogue says the icon has an eighteenth-century silver cover.

A bookish, Church Slavonic word. A priest's vestment is usually called "odežda" today, and the metal cover of an icon is "okov" (srebrni okov ikone).