doddering

[ dod-er-ing ]

/ ˈdɒd ər ɪŋ /

shaky or trembling, as from old age; tottering: a doddering old man.

Also dod·der·y

[dod-uh-ree] /ˈdɒd ə ri/.

Origin of doddering

First recorded in 1735–45; dodder¹ + -ing²

docutainment, dod, dodd, dodder, doddered, doddering, doddie, doddle, dodds, doddy, dodeca-

Take a look at film footage of the shambling old geezers: even the very youngest of them was a doddery old 61!

Don’t Call It a Frum-Back: What’s Changed After Three Months Away |David Frum |September 4, 2013 |DAILY BEAST
So initially he looked far too ignorant and doddery to run an international corporation.

Rupert’s See-No-Evil Tactics |Geoffrey Robertson |July 19, 2011 |DAILY BEAST
An' mebbe you'll think me doddery when I tell you my reason.

The Man of the Forest |Zane Grey
The great man is pretty old and doddery, wears spectacles about an inch thick, and a large collection of decorations.

A Journal From Our Legation in Belgium |Hugh Gibson

doddering

/ (ˈdɒdərɪŋ) /

shaky, feeble, or infirm, esp from old age