Amnesia is the Greek word Αμνησία. It is composed by Greek word μνήμη (mnimi means memory) and a- which means the lack of something. So the memory loss is Amnesia.
Amnesia
But you don't know it
Anomaly, originating from Greek ‘anōmalos’ (not even), refers to deviations from the norm in science and everyday use
Uncover the science of virology, tracing its roots from Latin “virus” for poison, to the modern study of viral structures and their impact on health and disease.