jetty vs storey

jetty

noun
  • A part of a building that jets or projects beyond the rest, and overhangs the wall below. 

  • A wharf or dock extending from the shore. 

  • A structure of wood or stone extended into the sea to influence the current or tide, or to protect a harbor or beach. 

storey

noun
  • A floor or level of a building or ship. 

  • A vertical level in certain letters, such as a and g. 

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