Psychopathology (noun)

1. The study of the origin, development, and manifestation of mental and emotional disorders.
2. The mental or emotional disorders themselves.

Origin:

From psychopath + -ology, modeled on words such as sociology, anthropology, etc.

Examples:

1. The psychopathology of the disorder is still not fully understood.
2. The study of psychopathology is an important aspect of psychology.
3. The psychopathology of the patient's condition had a profound effect on his behavior.
4. The psychopathology of the disease was characterized by symptoms such as anxiety and depression.
5. The patient's psychopathology was treated with a combination of therapy and medication.