agitation vs to-do

agitation

noun
  • A disturbance of personal tranquillity; disturbance of someone's peace of mind. 

  • Excitement of public feeling by discussion, appeals, etc. 

  • The act of agitating, or the state of being agitated; the state of being disrupted with violence, or with irregular action; commotion. 

to-do

noun
  • A fuss made over something. 

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

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