👉 Cratinean is a Latin word that means "crust," referring to the outer layer of soil or rock. It's often used in geology and archaeology, particularly in the context of sedimentary rocks. Cratinean means "crust" because it refers to the hard, compact texture of the surface layers beneath the Earth's crust. The term is derived from Latin "crataeus," which was a Roman word meaning "cut stone." In geology, crat