What is commn name of cabbage?

Cabbage is the common name for several plants of the genus *Brassica* in the family Brassicaceae. The most common type of cabbage is *Brassica oleracea* Capitata Group. It is widely grown as a vegetable crop for its dense, leafy heads. Depending on the variety, cabbages can have green, purple, or white leaves. The name "cabbage" is thought to come from the Old French word "caboche," meaning "head," referring to the compact shape of the plant's central leaves.