grandchild
noun
- a child's child
Wiktionary
noun
Etymology: Etymology tree English grand- English child English grandchild From grand- + child.
- A child of someone's child.
“...he fell into amazement when he thought of the Herculean labours those fifteen pairs of hands had performed: of the cows they had milked, the butter they had made, the gardens they had planted, the children and grandchildren they had tended, the brooms they had worn out, the mountains of food they had cooked. It made him dizzy.”
“Legendary NFL quarterback Joe Montana and his wife confronted a woman suspected of trying to kidnap their grandchild Saturday, according to the Los Angeles County Sheriff’s Department.”