1520, from the source of collect
(q.v.). As a shortened form of collective farm
(in the USSR) it dates from 1925. Collective bargaining
coined 1891 by Beatrice Webb; defined in U.S. 1935 by the Wagner Act; collective farm
first attested 1919 in translations of Lenin; collective noun
is recorded from 1520; collective security
first attested 1934 in speech of Winston Churchill.