Ishi is a Japanese name which means "rock or stone", a possible reference to her ability of terrain manipulation, and it suggests that she has a dependable and enduring character. It also means "live, last, remain" in Swahili. This name was chosen after her great-grandmother, Ishi Nakamura. Her middle name, Kimiko, was chosen after her maternal grandmother. It means "child without equal". Her surname is Japanese and means "autumn mountain".