district vs riding

district

noun
  • An administrative division of an area. 

  • An area or region marked by some distinguishing feature. 

  • the Soho district of London 

  • An administrative division of a county without the status of a borough. 

verb
  • To divide into administrative or other districts. 

riding

noun
  • Electoral district or constituency. 

  • The behaviour in the motion of a vehicle, such as oscillation. 

  • A path cut through woodland. 

  • The act of one who rides; a mounted excursion. 

  • Any of the three administrative divisions of Yorkshire and some other northern counties of England. 

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