waver
🇺🇸
/ˈweɪvər/
🇬🇧
/ˈweɪvə(r)/
to not be firm or steady
His voice wavered as he spoke about the accident.
to not be certain or to change your mind
He wavered in his decision to quit his job.
to move back and forth in a gentle way
The branches wavered in the wind.