affiliate (n.) Look up affiliate at Dictionary.com
1846, from affiliate (v.) via the adjective. Compare associate (n.). Affiliated society in reference to a local society connected with another or associated with a central organization is from 1795.
affiliate (adj.) Look up affiliate at Dictionary.com
"taken into close association," 1858, from affiliate (v.).
affiliate (v.) Look up affiliate at Dictionary.com
1761, "bring into close association," from Latin affiliatus, past participle of affiliare "to adopt a son," from ad "to" (see ad-) + filius "son" (see filial). Outside legal use, always figurative. Related: Affiliated; affiliating.