haulage vs portage

haulage

noun
  • The charge levied for hauling or pulling a ship or boat. 

  • The act of hauling. 

  • The business of transporting goods. 

portage

noun
  • A charge made for carrying something. 

  • An act of carrying, especially the carrying of a boat overland between two waterways. 

  • The route used for such carrying. 

  • The wages paid to a sailor when in port, or for a voyage. 

  • Carrying capacity; tonnage. 

  • A porthole. 

verb
  • To carry a boat overland 

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