What soes hemi mean?

"Hemi" is a prefix derived from the Greek Word "hēmi," meaning "half." It is commonly used in various contexts, such as in the term "hemisphere," which refers to half of a spherical object, like the Earth. In anatomy, it can refer to half of a structure, such as the brain's two hemispheres. Additionally, "Hemi" is often associated with certain automotive engines, particularly the HEMI engine design known for its hemispherical combustion chambers.