Cenotaph vs Petra

Cenotaph

name
  • A war memorial in Whitehall, London, England. 

Petra

name
  • An ancient city and archaeological site in Jordan. 

  • An ancient Hellenistic city and former bishopric in Roman Egypt; in full, Petra in Aegypto. 

  • A modern former municipality of Pieria, Central Macedonia administrative region, Greece. 

  • A modern village in Bâcleș Commune, Mehedinţi County, Romania. 

  • An unincorporated community in Bracken County, Kentucky, United States. 

  • A modern village in Preveza, Epirus administrative region, Greece. 

  • A former village and ghost town in Northern Cyprus, now uninhabited and largely destroyed. 

  • A modern town and municipality on the island of Mallorca, in the Balearic Islands, Spain. 

  • An ancient lost town in Corinthia in modern Greece. 

  • An ancient lost town in Elis in modern Greece. 

  • A modern village and former municipality on the island of Lesbos, North Aegean administrative region, Greece. 

  • A female given name from Ancient Greek. 

  • A medieval fortified town in Lazica, in the modern country of Georgia; modern Tsikhisdziri. 

  • A modern village and community in Aliartos municipality in Boeotia, Greece. 

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