waver
wa-ver
verb
To move unsteadily from side to side, or become weak and unsteady.
"The flame began to waver in the breeze."
verb
To hesitate or show indecision, especially in one's resolve or opinion.
"She did not waver in her commitment."
Thesaurus
Synonyms: falter, flutter, flitter, flicker, quiver, hesitate, waffle, fluctuate, vacillate, quaver, weave, faltering