expression, godan verb (-ru)
reach old age; enter one's later years
Describes the stage of life when one has become elderly. Often used in literary or reflective contexts.
彼も老境に入り、以前ほど活動的ではなくなった。
He has also entered his later years and is not as active as before.
Compound of 老境 (old age) + に (particle) + 入る (to enter).