Definition of affiliate:
(n) :
someone or something that is affiliated, or associated; a member of a group of associated things
"the local channel was an affiliate of a national network."
(v) :
to adopt; to receive into a family as a son; hence, to bring or receive into close connection; to ally; 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