v. & n.
v. 1 intr. tremble or vibrate with a slight rapid motion, esp.: a (usu. foll. by with) as the result of emotion (quiver with anger). b (usu. foll. by in) as the result of air currents etc. (quiver in the breeze). 2 tr. (of a bird, esp. a skylark) make (its wings) quiver.
n. a quivering motion or sound. quiveringly adv. quivery adj.
[ ME f. obs. quiver nimble: cf. QUAVER ]