<unk>  (Greek μελανχολία), in contemporary usage, is a mood disorder of non-specific depression, characterized by low levels of enthusiasm and low levels of eagerness for activity. In a modern context, "melancholy" applies only to the mental or emotional symptoms of depression or despondency; historically,<unk> " could be physical as well as mental, and<unk>  conditions were classified as such by their common cause rather than by their properties. Similarly,<unk>  in ancient usage also encompassed mental disorders which would later be differentiated as schizophrenias or bipolar disorders.
Melancholia
Psychosis
Hypomania
Melancholic depression
Euphorbia
Phobia
Automatic behavior
Kleptomania