- to swing or sway to and fro; flutter
- to show doubt or indecision; find it hard, or be unable, to decide; vacillate
- to become unsteady; begin to give way; falter
- to tremble; quaver: said of the voice, etc.
- to vary in brightness; flicker: said of light
- to fluctuate
- to totter
Origin of waverMiddle English waveren, frequentative of waven, to wave