stutter

verb

1. (ambitransitive)To speak (words) with a spasmodic repetition of vocal sounds.

   “He stuttered a few words of thanks.”

2. (intransitive)To expel a gas with difficulty.

   “I was stuttering after the marathon.”

   “The engine of the old car stuttered going up the slope.”

noun

1. A speech disorder characterized by stuttering.
2. (obsolete)One who stutters.

   “1626, Francis Bacon, Sylva Sylvarum, London: William Lee, IV. Century, p. 103, And many Stutters (we finde) are very Cholericke Men; Choler Enducing a Drinesse in the Tongue.”