suffrage vs vox populi

suffrage

noun
  • A vote in deciding a particular question. 

  • Aid, intercession. 

  • Testimony; attestation; witness; approval. 

  • The right of women to vote. 

  • A prayer, for example a prayer offered for the faithful dead. 

  • A short petition, as those after the creed in matins and evensong. 

  • The right or chance to vote, express an opinion, or participate in a decision, especially in a democratic elections. 

vox populi

noun
  • The public comment portion of a public meeting. 

  • voice of the people. 

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