Jet vs Pharos

Jet

name
  • A town in Oklahoma. 

  • A unisex given name. 

Pharos

name
  • The Lighthouse of Alexandria, located on the island Pharos 

  • A small island off Alexandria where the Lighthouse of Alexandria was located. 

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