1847, "pertaining to the relation between mind and body," from Greek psykhe- "mind" (see psyche) + somatikos, from soma (genitive somatos) "body" (see somato-). Applied from 1938 to physical disorders with psychological causes. Etymologically it could as easily apply to emotional disorders with physical causes, but it is rarely used as such.[psychosomatic etymology, psychosomatic origin, 英语词源]