finally vs lastly

finally

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

  • At the end or conclusion; ultimately. 

  • Definitively, comprehensively. 

lastly

adv
  • Used to mark the beginning of the last in a list of items or propositions. 

  • Used to signal that the speaker is about to yield control of the conversation. 

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