civic vs grassroots

civic

adj
  • Of, relating to, or belonging to a city, a citizen, or citizenship; municipal or civil. 

  • Of or relating to the citizen, or of good citizenship and its rights and duties. 

grassroots

adj
  • Of, or relating to people or society at the local level, particularly in politics, social movements, etc.; of the grass roots. 

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