Pathology is the study and diagnosis of disease. The word pathology is derived from the greek word "Pathos" meaning feeling, suffering and "Logia" meaning the study of. Patholization, to patholize, refers to the process of defining a condition or behaviour as pathological, e.g. pathological gambling. Pathologies is synonymous with diseases. The suffix "Path" is used to indicate a disease e.g,. psychopath.