Familial (adjective)

1. Relating to or characteristic of a family or families.
2. Relating to or inherited within a family.

Origin:

From the latin word "familia" meaning family.

Examples:

1. The familial bond between siblings is unbreakable.
2. He had a familial predisposition to heart disease.
3. The familial relationship between a parent and a child is unique.
4. Familial love is a special thing.
5. Familial ties can be both a blessing and a curse.