Definition of dementation in English:

dementation

noun

  • The action of making a person demented; the fact or condition of being demented; madness.

Origin

Late 16th century; earliest use found in Richard Robinson (fl. 1573–1589), poet. From post-classical Latin dementation-, dementatio insanity from dementat-, past participial stem of dementare + classical Latin -iō.

Pronunciation

dementation

/ˌdiːmɛnˈteɪʃn/