in-groupn.

1906 W. G. Sumner Folkways i. 12 Thus a differentiation arises between ourselves, the we-group, or in-group, and everybody else, or the others-groups, out-groups.

1932 H. Becker Syst. Sociol. ii. xi. 182 Members of such groups may indeed manifest a certain loyalty and consideration for all fellow-members, i.e., for the ‘in-group’.

1942 New Statesman 11 July 26/3 The very progress of civilisation has laid the foundation for a vast extension of in-group mutual dependency and mutual support.

1950 B. Wootton Test. Social Sci. vi. 127 For many primitive peoples..what the sociologist calls the ‘in-group’ consists of a relatively small tribal community, whereas the Christian is taught..to treat all men as brothers.

1964 J. M. Argyle Psychol. & Social Probl. x. 134 It is well known that residential courses are the scene of violent in-group feelings and wild enthusiasm.

1964 Rev. Eng. Stud. Aug. 338 Two masterly impersonations: of the shy poet hauled before dons, and of the puzzled philistine, ready with cautious, deflationary, in-group jokes.

1970 Jrnl. Gen. Psychol. Oct. 259 An error was considered..ingroup intrusion if the response was a word paired with a similar stimulus.

1971 Listener 18 Nov. 674/3 Their closed or in-group speech made me feel out of it.

1972 J. L. Dillard Black Eng. vi. 230 American Blacks are quick to perceive pronunciation differences on the part of West Indians who migrate to cities like New York and are somewhat slow to accept them into the in-group.

1939 American Imago Nov. 24 In-groupers must learn to tolerate..anxiety.

1967 J. Gardner Madrigal iii. 65 Cheery as an in-grouper at party time.

1965 Listener 4 Mar. 345/2 Mr. Gelber's mixture of sentimentality, in-groupiness, and Village dourness, can be more than a little grating.

1947 Partisan Rev. 14 478 The sense of in~groupness of the bohemian intellectual provides a source of psychological security.