waver (
http://definr.com/waver)
n 1: someone who communicates by waving
2: the act of pausing uncertainly; "there was a hesitation in
his speech" [syn:
hesitation,
falter,
faltering]
3: the act of moving back and forth [syn:
flutter,
flicker]
v 1: pause or hold back in uncertainty or unwillingness:
"Authorities hesitate to quote exact figures." [syn:
hesitate,
waffle]
2: be unsure or weak; "Their enthusiasm is faltering" [syn:
falter]
3: move hesitatingly, as if about to give way [syn:
falter]
4: move in an unstable manner [syn:
fluctuate,
vacillate]
5: move back and forth very rapidly, as of a candle [syn:
flicker,
flitter,
flutter,
quiver]
6: sway to and fro [syn:
weave]
7: give off unsteady sounds, alternating in amplitude or
frequency [syn:
quaver]