Af‐fil″i‐ate (�), v. t. [imp. & p. p.Affiliated (�); p. pr. & vb. n.Affiliating (�).] [LL. adfiliare, affiliare, to adopt as son; ad + filius son: cf. F. 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.
Affiliated societies, societies connected with a central society, or with each other.