The Collaborative International Dictionary of English v.0.48:

Quiver \Quiv"er\, v. i. [imp. & p. p. Quivered
   (kw[i^]v"[~e]rd); p. pr. & vb. n. Quivering.] [Cf.
   Quaver.]
   To shake or move with slight and tremulous motion; to
   tremble; to quake; to shudder; to shiver.
   [1913 Webster]

         The green leaves quiver with the cooling wind. --Shak.
   [1913 Webster]

         And left the limbs still quivering on the ground.
                                                  --Addison.
   [1913 Webster]

WordNet (r) 3.0 (2006):

quivering
    n 1: a shaky motion; "the shaking of his fingers as he lit his
         pipe" [syn: shaking, shakiness, trembling, quiver,
         quivering, vibration, palpitation]
    2: the act of vibrating [syn: vibration, quiver,
       quivering]