an·am·ne·sis

- noun
1. the recollection or remembrance of the past; reminiscence.
2. recollection of the ideas, which the soul had known in a previous existence, esp. by means of reasoning.
3. the medical history of a patient.
4. the ability to recall past occurrences.

am·ne·sia

- noun
1. partial or total loss of memory, usually resulting from shock, psychological disturbance, brain injury, or illness.