psychasthenia
/ˌsʌɪkəsˈθiːnɪə/Psychology and Psychiatry
noun
Originally: neurosis, especially of a phobic or obsessive type; an instance of this; (now chiefly historical ). Later also: mental lethargy, especially as a category in psychological personality testing.
Origin
Early 20th century. From psycho- + asthenia, after French psychasthénie.