deckhouse vs moorage

deckhouse

noun
  • A cabin that protrudes above a ship's deck. 

moorage

noun
  • A place where a ship or an aircraft may be moored. 

  • The act of mooring. 

  • The fee for mooring. 

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