banneret vs equestrian

banneret

noun
  • A small banner. 

  • A proposed but unadopted senior commissioned rank of the Royal Air Force equivalent to group captain. 

  • A civil officer in some Swiss cantons. 

equestrian

adj
  • Of or relating to the ancient Roman class of equites. 

  • Of horseback riding or horseback riders. 

noun
  • Synonym of eques 

  • One who rides a horse. 

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