Polishing Tarnished Silver

polishing
Make the surface of (something) smooth and shiny by rubbing it
(polished) perfected or made shiny and smooth; "his polished prose"; "in a freshly ironed dress and polished shoes"; "freshly polished silver"
(polished) showing a high degree of refinement and the assurance that comes from wide social experience; "his polished manner"; "maintained an urbane tone in his letters"
Improve, refine, or add the finishing touches to
shining: the work of making something smooth and shiny by rubbing or waxing it; "the shining of shoes provided a meager living"; "every Sunday he gave his car a good polishing"

tarnished
Tarnish is a thin layer that forms over copper, brass, silver, aluminum, and other semi-reactive metals as their outermost layer undergoes a chemical reaction. Tarnish is mainly caused by chemicals in the air, such as sulfur dioxide.
Make or become less valuable or respected
(tarnish) make dirty or spotty, as by exposure to air; also used metaphorically; "The silver was tarnished by the long exposure to the air"; "Her reputation was sullied after the affair with a married man"
Lose or cause to lose luster, esp. as a result of exposure to air or moisture
(tarnish) discoloration of metal surface caused by oxidation

silver
(esp. of the moon) Give a silvery appearance to
Provide (mirror glass) with a backing of a silver-colored material in order to make it reflective
made from or largely consisting of silver; "silver bracelets"
Coat or plate with silver
coat with a layer of silver or a silver amalgam; "silver the necklace"
a soft white precious univalent metallic element having the highest electrical and thermal conductivity of any metal; occurs in argentite and in free form; used in coins and jewelry and tableware and photography