introjection (n.)

1856, in medicine, from intro- "on the inside, within" + stem abstracted from projection, interjection. In philosophical (1892) and psychoanalytical (1911) uses, from German introjektion; in the former sense the coinage is credited to Swiss-German philosopher Richard Avenarius (1843-1896), in the latter Sándor Ferenczi (1873-1933).

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