老おい込こむ

godan verb (-mu), intransitive verb

grow old and weak; become senile

Describes the process of aging to the point of physical or mental decline. Often implies a noticeable loss of vigor or faculties.

• 祖そ父ふは最さい近きん急きゅうに老おい込こんだように見みえる。

  My grandfather seems to have suddenly aged and weakened recently.

• 老おい込こんでからでは遅おそいから、今いまのうちに健けん康こうに気きをつけよう。

  It's too late once you've grown old and frail, so let's take care of our health now.