boathook vs hakapik

boathook

noun
  • A hook attached to a pole used for pulling or pushing boats, rafts, logs or other objects to or from the side of a boat. 

  • A pole or rod with such a hook at one end. 

hakapik

noun
  • A hunting implement, a long pole with a pick and hammer on the end, used by sealers to bludgeon seals and drag their carcasses to the sealing boat. 

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