falter

v. t.

  1. To thrash in the chaff; also, to cleanse or sift, as barley.
  2. To utter with hesitation, or in a broken, trembling, or weak manner.

v. & n.

  1. To hesitate; to speak brokenly or weakly; to stammer; as, his tongue falters.
  2. To tremble; to totter; to be unsteady.
  3. To hesitate in purpose or action.
  4. To fail in distinctness or regularity of exercise; -- said of the mind or of thought.

v. i.

  1. Hesitation; trembling; feebleness; an uncertain or broken sound; as, a slight falter in her voice.