entryismn.
/ˈɛntrɪɪz(ə)m/, U.S. /ˈɛntriˌɪz(ə)m/ Chiefly British.
The policy or practice of joining a political party or other organization with the intention of subverting its aims and activities; organized infiltration. Cf. entrism n.Originally with reference to the infiltration of left-wing groups by the far left.
ΘΚΠ
society > authority > rule or government > politics > discreditable political activity > [noun] > joining with intention of subverting
entrism1963
entryism1966
1966 Guardian 25 Nov. 7/2 The Socialist Labour League rejects the stratagem known as ‘entryism’—trying to swing the Labour Party to the Left by infiltrating constituency and ward parties.
1981 Daily Tel. 23 Nov. 16/4 It is virtually impossible to establish hard details of far Left penetration and entryism in charities.
1996 Independent 1 Apr. 19/2 Both sides accuse the other of entryism, both with some justification. Recently the British Field Sports Society and its allies have been calling upon members to join the RSPCA to vote out the animal rightists on the council.
2015 New Statesman 31 July 5/1 The rules have made Labour vulnerable once again to entryism from the far left and to manipulation from the outside.
This entry has been updated (OED Third Edition, September 2018; most recently modified version published online March 2022).
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n.1966