On in years

Being rather young at present—I am getting on in years, but still I am rather young—I have no particular adventures of my own to fall back upon.

More years went by, and his wife was dead, and he well on in years.

I am getting on in years; and my partner Lazarus has at last made a stand and insisted that the succession must be settled.

[O]ld as I am,—I do not mean aged, but well on in years,—I believe in love still.

Brittle bones can be more than just a bother for anyone who is getting on in years.