dementationyoudaoicibaDictYouDict[dementation 词源字典]
"The action of making a person demented; the fact or condition of being demented; madness", Late 16th cent.; 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.[dementation etymology, dementation origin, 英语词源]