dotage

名词 dotage:

1. mental infirmity as a consequence of old age; sometimes shown by foolish infatuations
   同义词：second childhood, senility

1. He has dotage because of old age.
   他因年老而糊里糊涂。

dot.age

n.（名词）
A deterioration of mental faculties; senility.
衰老：大脑功能的衰老；老年昏聩

来源：
Middle English
中古英语
from doten [to dote]
源自 doten [昏聩]