Artificial intelligent assistant

dudder

dudder, v. Obs. exc. dial.
  (ˈdʌdə(r))
  [var. of didder.]
  intr. To shudder, shiver.

a 1658 Ford, etc. Witch Edmonton ii. i, I dudder and shake like an aspen leaf. a 1846 Spurdens Suppl. Forby's Voc. E. Anglia, Dudder, to shiver with cold, or with fear; to shudder; but a more expressive word.

Oxford English Dictionary

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