something giving evidence or indication of a disease or other physical disorder
Here am I, dying of a hundred good symptoms — Alexander Pope
something that indicates the existence of something else, esp something undesirable
Crumbling classrooms are a symptom of the lack of investment in education
symptomless adj
[via late Latin from Greek symptōmat-, symptōma happening, attribute, symptom, from sympiptein to happen, from sym- + piptein to fall]