silvered

/S IH1 L V ER0 D/
verb
  1. 1

    To acquire a silvery colour.

  2. 2

    To cover with silver, or with a silvery metal.

    โ€œto silver a pin;โ€‚ to silver a glass mirror plate with an amalgam of tin and mercuryโ€

  3. 3

    To polish like silver; to impart a brightness to, like that of silver.

  4. 4

    To make hoary, or white, like silver.

adjective
  1. 1

    Coated with silver, made reflective or shiny by application of metal.

Source: https://en.wiktionary.org/wiki/silver, https://en.wiktionary.org/wiki/silvered