If you're talking about a small, thin piece of wood that has a silvery sheen:
* Splinter: This is a common term for a small, sharp piece of wood. While not inherently silver, it could have a silvery appearance if it's from a light-colored wood.
* Shaving: A thin, flat piece of wood that has been shaved off. This could have a silvery sheen depending on the wood and how it was cut.
* Silverwood: While not a common word, it could be used to describe wood with a silvery appearance.
If you're talking about something else, like a decorative item made of wood with a silvery finish:
* Inlay: A piece of wood (or other material) that is embedded into another surface, creating a decorative pattern.
* Veneer: A thin layer of wood that is glued to a surface to create a decorative effect.
Ultimately, the best word to use will depend on the specific context and what you are trying to describe.