dotard

dotard汉语翻译：
n. 年老昏愦的人, 老糊涂
【医】衰老者英语解释：
名词 dotard:

an oldster in his dotage; someone whose age has impaired his intellect

详细解释：
dot.ard
n.（名词）
A person who is in his or her dotage.
年老昏聩的人：处于他（她）衰老阶段的人
来源：
Middle English
中古英语
from doten [to dote]
源自 doten [昏聩]