v. ? Obs. rare. In 7 stymmer. [Of obscure origin; app. phonetically symbolic: cf. shimmer, flimmer.] intr. To move about irregularly.

1

1616.  Surflet & Markham, Country Farm, III. li. 426. So soone as you perceiue the smoake to stymmer or runne about the edges of the panne.

2

1808.  Jamieson, To Stimmer, to go about in a confused manner.

3