Sociology (Humanities), 1937
Unable to master one discipline; having no subject or knowledge of its own to discuss. Useless, or syncretic. A bit like a DJ mixing other peoples’ music together.
Chemistry is a discipline. As is medicine, physics, biology, mathematics, literature, or astronomy. The first known usage of the term is from a notice of the availability of fellowships for the American Council of Learned Societies reprinted in the Journal of Educational Sociology_referred to “training of an interdisciplinary nature”.