■ verb ə'fɪlɪeɪt (usu. be ~d to/with ) officially attach or connect to an organization.
↘(of an organization) admit as a member.
■ noun ə'fɪlɪət an ~d person or organization.
Derivatives
affiliation noun
affiliative adjective
Origin
C18 (earlier (C17) as affiliation ): from med. L. affiliat- , affiliare 'adopt as a son'.