This comes from the Latin word "vitrum" meaning glass.
Here are some examples of words using the prefix "vitre-":
* Vitreous: resembling glass, especially in being transparent or shiny.
* Vitrification: the process of converting a substance into a glassy state.
* Vitreous humor: the clear, jelly-like substance that fills the space between the lens and the retina of the eye.
* Vitreous silica: a type of glass made primarily from silica.