Origin: 1250–1300; ME (north)
at do, a phrase equiv. to
at to (< ON, which used
at with the inf.) +
do do 1 
Synonyms:
flurry; confusion, upset, excitement; hubbub, noise, turmoil. Ado, to-do, commotion, stir, tumult suggest a great deal of fuss and noise. Ado implies a confused bustle of activity, a considerable emotional upset, and a great deal of talking: Much Ado About Nothing. To-do, now more commonly used, may mean merely excitement and noise and may be pleasant or unpleasant: a great to-do over a movie star. Commotion suggests a noisy confusion and babble: commotion at the scene of an accident. Stir suggests excitement and noise, with a hint of emotional cause: The report was followed by a tremendous stir in the city. Tumult suggests disorder with noise and violence: a tumult as the mob stormed the Bastille.
Antonyms:
calm, peace, tranquillity.
[uh-doo] 