1. To sway to and fro; SYN. weave.
2. Pause or hold back in uncertainty or unwillingness
3. Be unsure or weak
4. Move hesitatingly, as if about to give way
5. Move back and forth very rapidly
6. Give off unsteady sounds, alternating in amplitude or frequency

ETYM From Wave, or Waver.
(Homonym: waiver).
1. Someone who communicates by waving.
2. The act of moving back and forth; SYN. flutter, flicker.
3. The act of pausing uncertainly