Which of the following terms is associated with "path/o"?

The term "path/o" is derived from the Greek word "pathos," which means suffering or disease. In medical terminology, "path/o" is a combining form used to refer specifically to disease processes. This root is commonly found in various medical terms such as pathology (the study of disease), pathogenic (capable of causing disease), and pathophysiology (the study of the disordered physiological processes that lead to disease).

The other options do not connect to this root in the same way. While "medicine" relates to the field of health and treatment, it does not directly encompass the meaning of "path/o." "Pathway" suggests a course or route, which is unrelated to the concept of disease. "Pediatrics" refers to the branch of medicine dealing with children's health but does not pertain to the root "path/o" that specifically denotes aspects of disease. Therefore, "disease" is the only term that accurately associates with "path/o."