To shake, tremble, or vibrate continuously in small movements.
Related to 'dridder' and Middle English 'dridde,' this verb form intensifies the meaning of trembling or shaking, possibly with a frequentative suffix suggesting repeated or continuous action.
Medieval English had wonderful words for tiny movements—'driddle' captures that specific sensation of something continuously jiggling that we now often just call 'vibrating,' losing a lot of personality in the process.
Complete word intelligence in one call. Free tier — 50 lookups/day.