英语词源字典 - 在线词源网站

affirmative (adj.)[affirmative 词源字典]: "answering 'yes,'" mid-15c., from use in logic; from Middle French affirmatif (13c.), from Latin affirmativus, from affirmat-, past participle stem of affirmare (see affirm). As a noun from early 15c. Affirmative action "positive or corrective effort by employers to prevent discrimination in hiring or promotion" is attested from 1935 with regard to labor unions; specific racial sense is from 1961; now often used in reference to hiring quotas, etc.[affirmative etymology, affirmative origin, 英语词源]