- Speak unsteadily - Tremble - To tremble; to vibrate; to shake. - Especially, to shake the voice; to utter or form sound
with rapid or tremulous vibrations, as in singing; also, to trill on a
musical instrument - To utter with quavers. - A shake, or rapid and tremulous vibration, of the voice, or
of an instrument of music. - An eighth note. See Eighth.