amnesia
/amˈniːzɪə
/noun [mass noun]
A partial or total loss of memory: they were suffering from amnesia...
- He was suffering from total amnesia and dementia praecox and was duly incarcerated in an asylum in Rodez in central France.
- Total amnesia may also result from a medical operation that goes wrong.
- Reports by patients of memory loss are of the erasing of autobiographical memories or retrograde amnesia.
Origin
Late 18th century: from Greek amnēsia 'forgetfulness'.