finally vs ultimately

finally

adv
  • To finish (with); lastly (in the present). 

  • At the end or conclusion; ultimately. 

  • Definitively, comprehensively. 

ultimately

adv
  • Indicating the last item. 

  • Indicating the most important action. 

  • Used to indicate the etymon at which a given etymological derivation terminates. 

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