faltering

verb

1
To waver or be unsteady; to weaken or trail off.
2
To stammer; to utter with hesitation, or in a weak and trembling manner.
3
To fail in distinctness or regularity of exercise; said of the mind or of thought.
4
To stumble.
5
To lose faith or vigor; to doubt or abandon (a cause).
6
To hesitate in purpose or action.
7
To cleanse or sift, as barley.

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