judder

noun

1. (countable, uncountable)A spasmodic shaking.
2. (countable, uncountable)Jerky playback caused by converting between frame rates; telecine judder

verb

1. (intransitive)To spasm or shake violently.

   “Captain McGarrigle, however, seemed to be in trouble. He was breathing stertorously, his throat and chest juddering like those of an asthmatic.”

2. (intransitive)To move with a stop-start motion, as if experiencing a strong resistance or when decelerating brusquely.

   “To judder to a halt”