Vac"il*late (?), v. t. [imp. & p.
p. Vacillated (?); p. pr. & vb. n.
Vacillating.] [L. vacillare, vacillatum; cf. Skr.
vañc.]
1. To move one way and the other; to reel or
stagger; to waver.
[A spheroid] is always liable to shift and
vacillatefrom one axis to another.
Paley.
2. To fluctuate in mind or opinion; to be unsteady
or inconstant; to waver.
Syn. -- See Fluctuate.