Grandparent (noun)

A parent of one's father or mother.

Origin:

Late 19th century: from grand- (expressing relationship) + parent.

Examples:

1. She was very close with her grandparent.
2. His grandparent was always there for him.
3. The grandparent was babysitting their grandchildren.
4. She loved spending time with her grandparent.
5. The grandparent was proud of their grandchild's accomplishments.