UK Word for Shook Rapidly, Rhymes With Muttered

This page is the CodyCross answer for the clue below from Health and Fitness, Group 2130, Puzzle 2 (Intermittent Fasting).

Question is: UK Word for Shook Rapidly, Rhymes With Muttered

and the answer is: JUDDERED

Word Meaning:

JUDDERED — simple past and past participle of judder

Definitions from Wiktionary.