Concept:
In glass forming, a gathered mass of molten glass may be shaped and rolled on a flat surface called a marver. This operation helps in giving preliminary shape and uniformity.
Step 1: Marvering means rolling or shaping molten glass on a flat metal or stone surface.
Step 2: The purpose of marvering is to control shape and temperature distribution.
Step 3: The marved glass form is referred to as crany in the given terminology.
Step 4: Therefore, marved glass is called:
\[
\boxed{\text{Crany}}
\]