dodder

humalavieras

taapertaa puhekieltä To shake or tremble as one moves, especially as of old age or childhood; to totter.
2013, (w), (w), Melbourne, Australia: The Text Publishing Company, pp. 59-60.

Their neighbours have been, on one side, an old man who dodders around in his dressing gown talking to himself, and on the other a stand-offish couple who pretend not to understand the Spanish he speaks.