noun
Refers to the state of being senile or in one's dotage; a somewhat blunt term.
祖父は老いぼれで、最近は家族の顔もわからなくなった。
My grandfather is senile and lately doesn't even recognize his family's faces.
noun
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.
もう老いぼれの私には、新しいことは覚えられません。
An old fool like me can't learn new things anymore.
あの老いぼれはいつも同じ話を繰り返す。
That senile old fool always repeats the same story.
Compound of 老い (oi, 'old age') and ぼれ (bore), the nominalized form of ぼれる (horeru, 'to become senile'). The kanji 耄 specifically means 'senile'.