infantilismn.

1871 F. V. Faneau de la Cour (title) Du féminisme et de l'infantilisme chez les tuberculeux.]

1895 W. D. Morrison in Lombroso & Ferrero Female Offender Introd. p. xvi Sexual peculiarities, such as feminism in men, mascul[in]ism in women, and infantilism in both.

1896 Nat. Sci. Sept. 154 Though permanent infantilism may occur, in most instances this is only a transient stage.

1897 tr. T. A. Ribot Psychol. Emotions 422 The formula which..sums up and explains the unstable is this: psychological infantilism.

1897 tr. T. A. Ribot Psychol. Emotions 422 The term infantilism is equally applicable to the congenital and the acquired forms. The former have never left their childhood behind, the latter return to it.

1903 Lancet 30 May 1526/1 A case of Infantilism in a child, aged ten years, who had not grown since four years old. Her weight was 26 pounds and her height was three feet.

1904 Brit. Med. Jrnl. 15 Oct. 1011/2 A case of pancreatic infantilism.

1909 W. F. Robertson & T. C. Mackenzie tr. E. Tanzi Text-bk. Mental Dis. xxii. 670 There is then an arrest of the genetic instinct at the infantile stage—an erotic infantilism.

1923 H. G. Baynes Jung's Psychol. Types Pref. p. xv The developing child who seeks to adventure beyond the magic circle of the family encounters..the..inertia and infantilism of his own psychology.

1924 J. Riviere et al. tr. S. Freud Coll. Papers I. xiv. 277 The ‘infantile sexual traumas’ were in a sense supplanted by the ‘infantilism’ of the sexuality in these cases.

1924 W. B. Selbie Psychol. Relig. xv. 297 The worship of God is a form of infantilism, and survives because it meets a certain elementary need and satisfies the sense of dependence which man never altogether loses.

1943 S. R. Slavson Introd. Group Therapy vii. 224 Children whose parents are in conflict with each other are not only fixed in their infantilism as a result, but use it to exploit the two parents.

1950 R. H. Williams Textbk. Endocrinol. ii. 49 Gonadal hypoplasia with dwarfism..is sometimes referred to as infantilism or the Lorain-Lévi syndrome.

1953 A. W. Spence Clin. Endocrinol. xli. 495 The word ‘infantilism’ was first used in medical literature by Lorain (1871) when he wrote the preface of the thesis of one of his pupils, Faneau de la Cour, on feminism and infantilism in tuberculous patients.

1962 R. H. Williams Textbk. Endocrinol. (ed. 3) xv. 933 The differentiation of persistent sexual infantilism from constitutionally delayed adolescence.