to-do vs tumult

to-do

noun
  • A fuss made over something. 

  • A task that has been noted as one that must be completed, especially on a list. 

tumult

noun
  • Confused, agitated noise as made by a crowd. 

  • Violent commotion or agitation, often with confusion of sounds. 

  • A riot or uprising. 

How often have the words to-do and tumult occurred in a corpus of books? (source: Google Ngram Viewer )