Vacillate
Pronunciation : Vac"il*late
Part of Speech : v.
Etymology : [L. vacillare, vacillatum; cf. Skr. va?c.]
Definition : 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.
t. [imp. & p. p. Vacillated; p. pr. & vb. n. Vacillating.]
Source : Webster's Unabridged Dictionary, 1913