Webster's Revised Unabridged Dictionary · 1913

Affiliate

Affiliate ({not transcribed}) , transitive verb

[Late Latin adfiliare, affiliare, to adopt as son; ad + filius son: compare French affilier.]

1.
To adopt; to receive into a family as a son; hence, to bring or receive into close connection; to ally.
Is the soul affiliated to God, or is it estranged and in rebellion? — I. Taylor
2.
To fix the paternity of; -- said of an illegitimate child; as, to affiliate the child to (or on or upon) one man rather than another.
3.
To connect in the way of descent; to trace origin to.
How do these facts tend to affiliate the faculty of hearing upon the aboriginal vegetative processes? — H. Spencer
4.
To attach (to) or unite (with); to receive into a society as a member, and initiate into its mysteries, plans, etc.; -- followed by to or with.
Collocations (1)
Affiliated societies , societies connected with a central society, or with each other.

Affiliate , intransitive verb

To connect or associate one's self; -- followed by with; as, they affiliate with no party.