waver

v. sway, oscillate, vacillate, fluctuate; blink, flicker (as of light); wobble, tremble; collapse; begin to fail; hesitate, falter

Waver is a town in the Dutch province of North Holland. It is a part of the municipality of Ouder-Amstel, and lies about 13 km south of Amsterdam.
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Noun
1. someone who communicates by waving
(hypernym) communicator
(derivation) brandish, flourish, wave
2. the act of pausing uncertainly; "there was a hesitation in his speech"
(synonym) hesitation, falter, faltering
(hypernym) pause
(derivation) hesitate, waffle
3. the act of moving back and forth
(synonym) flutter, flicker
(hypernym) motion, movement, move, motility
(derivation) falter
Verb
1. pause or hold back in uncertainty or unwillingness; "Authorities hesitate to quote exact figures"
(synonym) hesitate, waffle
(hyponym) dwell on, linger over
(entail) doubt
(derivation) hesitation, falter, faltering
2. be unsure or weak; "Their enthusiasm is faltering"
(synonym) falter
(hypernym) hesitate, waffle
(derivation) waverer, vacillator, hesitator, hesitater
3. move hesitatingly, as if about to give way
(synonym) falter
(hypernym) move
(derivation) flutter, flicker
4. move or sway in a rising and falling or wavelike pattern; "the line on the monitor vacillated"
(synonym) fluctuate, vacillate
(hypernym) swing
(verb-group) fluctuate
(derivation) flutter, flicker
5. move back and forth very rapidly; "the candle flickered"
(synonym) flicker, flitter, flutter, quiver
(hypernym) move back and forth
(derivation) flutter, flicker
6. sway to and fro
(synonym) weave
(hypernym) swing, sway
(derivation) flutter, flicker
7. give off unsteady sounds, alternating in amplitude or frequency
(synonym) quaver
(hypernym) voice, sound, vocalize, vocalise

(v.)
A sapling left standing in a fallen wood.
  

(v. i.)
To play or move to and fro; to move one way and the other; hence, to totter; to reel; to swing; to flutter.
  

(v. i.)
To be unsettled in opinion; to vacillate; to be undetermined; to fluctuate; as, to water in judgment.
  

Synonyms and related words:
alternate, back and fill, beat, beating, bicker, blench, bob, bobble, boggle, careen, change, coggle, dance, dangle, demur, dither, ebb and flow, equivocate, falter, fight shy of, flap, flick, flicker, flinch, flip, flit, flitter, flop, flounder, fluctuate, flutter, go pitapat, go through phases, gutter, halt, hang back, hang off, have qualms, hem and haw, hesitate, hold off, librate, lurch, make bones about, nutate, oscillate, palpitate, palpitation, palter, pause, pendulate, pitapat, pitch, pitter-patter, play, pull back, pulse, quail, quiver, recoil, reel, resonate, ring the changes, rock, roll, scruple, seesaw, shake, shift, shilly-shally, shrink, shuffle, shy, shy at, slat, splutter, sputter, stagger, stick at, stickle, strain, swag, sway, swing, swinging, teeter, teeter-totter, tergiversate, throb, toss, totter, trim, turn, vacillate, vary, vibrate, wag, waggle, wave, wax and wane, whiffle, wince, wobble