Vacillancy :: Vacillancy (n.) The quality or state of being vacillant, or wavering..
Vacillant :: Vacillant (a.) Vacillating; wavering; fluctuating; irresolute.
Vacillate :: Vacillate (v. t.) To move one way and the other; to reel or stagger; to waver.
Vacillate :: Vacillate (v. t.) To fluctuate in mind or opinion; to be unsteady or inconstant; to waver.
Vacillation :: Vacillation (n.) The act of vacillating; a moving one way and the other; a wavering.
Vacillatory :: Vacillatory (a.) Inclined to vacillate; wavering; irresolute.