Etymology of the Latin word amentia
the Latin word
amentia (madness; extreme folly, infatuation)
derived from the Latin word
amens (insane, demented, out of one's mind)
using the New Latin prefix
a-derived from the Late Latin word
mens (mind; reason, intellect)
derived from the Proto-Indo-European root
*men-Derivations in other languages
English
amentia, Italian
amenza, Spanish
amencia