disturb vs worry

disturb

verb
  • to have a negative emotional impact; to cause emotional distress or confusion. 

  • to divert, redirect, or alter by disturbing. 

  • to confuse a quiet, constant state or a calm, continuous flow, in particular: thoughts, actions or liquids. 

worry

verb
  • To be troubled; to give way to mental anxiety or doubt. 

  • To harass; to irritate or distress. 

  • To touch repeatedly, to fiddle with. 

  • To seize or shake by the throat, especially of a dog or wolf. 

  • Disturb the peace of mind of; afflict with mental agitation or distress. 

noun
  • A strong feeling of anxiety. 

  • An instance or cause of such a feeling. 

  • A person who causes worry. 

How often have the words disturb and worry occurred in a corpus of books? (source: Google Ngram Viewer )