Refers to the state of being senile or in one's dotage; a somewhat blunt term.
My grandfather is senile and lately doesn't even recognize his family's faces.
senile old fool; dotard
Derogatory or self-deprecating term for a feeble-minded old person; can be used humbly about oneself or one's in-group.
An old fool like me can't learn new things anymore.
That senile old fool always repeats the same story.
become decrepit; become senile
Most common spelling; uses 老い (old age) and kana ぼれ.
Abbreviated kanji form; rarely used.
Kanji 耄 (senile) is rare and may not display correctly on all devices.
A compound of 老い “old age” and 惚れ “foolishness, mental decline,” with rendaku producing ぼれ. It denotes senility and, disparagingly, a senile old person.