Quaver — Defs

01 v. i. To tremble; to vibrate; to shake.

imp. & p. p. Quavered; p. pr. & vb. n. Quavering

1.
To tremble; to vibrate; to shake.
2.
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

02 v. t. To utter with quavers.

1.
To utter with quavers.
“We shall hear her quavering them . . . to some sprightly airs of the opera.” — Addison.

03 n. A shake, or rapid and tremulous vibration, of the voice, or of an instrument of music.

1.
A shake, or rapid and tremulous vibration, of the voice, or of an instrument of music.
2.
An eighth note. See Eighth.(Mus.) See: Eighth