disenfranchised vs helpless

disenfranchised

adj
  • Not represented; especially, not having the right to vote. 

helpless

adj
  • Unable to defend oneself. 

  • Unable to act without help; needing help; feeble. 

  • Uncontrollable. 

  • Lacking help; powerless. 

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