Juddering

Juddering: Judder is a British synonym for shudder of recent, but unknown etymology. Suggested etymologies include: jar+shudder, jerk+shudder, jolt+shudder, jump+shudder, jiggle+shudder, and so on ad nauseum.

When the silence fell so suddenly the peanut shells began to scuttle soundlessly acruss the juddering tabletop and something almost spectrally put a little storm of ripples into the teacup in their midst.