Dementia
The term dementia entered the English language from the French in a rendering of French psychiatrist Pinel’s (1745-1826) word “demance” (from Treatise on Insanity, 1806). Its ultimate source is Latin, meaning “loss” (or out) of “mind” or “reason.” Some forms of dementia are transitory, while others are neurodegenerative and fatal. Dementias may co-occur or present