the.com/etiology

means The study or investigation of the causes behind a disease, condition, or phenomenon.

from From Greek aitia, meaning 'cause,' combined with -logia, 'the study of.' The root aitia originally carried a sense of blame or accusation in legal and philosophical contexts — Aristotle used it to describe the different kinds of causes behind a thing's existence. The word passed into Late Latin as aetiologia before settling into English, where it kept its forensic edge: etiology doesn't just ask what happened, it asks whose fault it is, cosmically speaking.