孫
まご · mago · JLPT N3 · noun
grandchild
👶 孫 = 子 child + 系 lineage: the child who carries the family line on
子 means child and 系 (written in a squeezed form on the right) means thread or lineage. A grandchild is the child one more step along the family thread. For the reading まご (mago), a hook: the line goes on, ma-go-on.