Familial

Adjective

1. Of or pertaining to a human family.

   "Mark had to leave work due to familial obligations."

2. Pertaining to a taxon at the rank of family.

   "Having milky latex is a familial characteristic of Apocynaceae."

3. Of or pertaining to any grouping of things referred to as a family.

   ""Grandfather", "mother", and "brother" are some English familial terms."

4. Inherited.

   "fatal familial insomnia"