Affiliative

to bring into close association or connection:
The research center is affiliated with the university.
to attach or unite on terms of fellowship; associate (usually followed by with in U.S. usage, by to in Brit. usage):
to affiliate with the church.
to trace the descent, derivation, or origin of:
to affiliate a language.
to adopt.
Law. to fix the paternity of, as an illegitimate child:
The mother affiliated her child upon John Doe.
to associate oneself; be intimately united in action or interest.
a branch organization.
Commerce.

a business concern owned or controlled in whole or in part by another concern.
a subsidiary.

a person who is affiliated; associate; auxiliary.
verb (əˈfɪlɪˌeɪt)
(transitive; foll by to or with) to receive into close connection or association (with a larger body, group, organization, etc); adopt as a member, branch, etc
(foll by with) to associate (oneself) or be associated, esp as a subordinate or subsidiary; bring or come into close connection: he affiliated himself with the Union
noun (əˈfɪlɪɪt; -ˌeɪt)

a person or organization that is affiliated with another
(as modifier): an affiliate member

v.

1761, from Latin affiliatus, past participle of affiliare “to adopt” (see affiliation). Outside legal use, always figurative. Related: Affiliated; affiliating.
adj.

1858, from affiliate (v.).
n.

1846, from affiliate (v.).