Similarly, based on the cooking method, there is a theory that says the name came from 'mamushi,' which means that the eel is steamed between layers of rice, and there is another theory that says that the name came from 'mabushi,' which means that the rice is topped with eel and sauce and mixed.
同じく料理法から飯と飯の間で蒸すという意味で「間蒸し」とする説、飯の上にウナギやたれをまぶすものとして「まぶし」が転じたとの説もある。