To make involuntary stops in uttering syllables or words; to hesitate or falter in speaking; to speak with stops and difficulty; to stutter.

To utter or pronounce with hesitation or imperfectly; -- sometimes with out.

Defective utterance, or involuntary interruption of utterance; a stutter.

a speech disorder involving hesitations and involuntary repetitions of certain sounds

speak haltingly; "The speaker faltered when he saw his opponent enter the room"