wobble
    n 1: an unsteady rocking motion
    v 1: move unsteadily; "His knees wobbled"; "The old cart wobbled
         down the street" [syn: wobble, coggle]
    2: move sideways or in an unsteady way; "The ship careened out
       of control" [syn: careen, wobble, shift, tilt]
    3: tremble or shake; "His voice wobbled with restrained emotion"
       [syn: shimmy, wobble]

Wobble \Wob"ble\, v. i.
   See Wabble.
   [1913 Webster]