harborage vs portside

harborage

noun
  • A place for refuge for a vessel. 

  • A condition on land favorable to infestation by animals considered pests. 

  • A place of shelter or entertainment. 

portside

noun
  • The port (left) side of a boat. 

  • An area alongside a port. 

adj
  • On the port (left) side of a ship. 

adv
  • Toward or on the port side. 

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