Viking vs pirate

Viking

noun
  • A player on the Minnesota Vikings NFL team. 

  • A stock character common in the fantasy genre, namely a barbarian, generally equipped with an axe or sword and a helmet adorned with horns. 

  • A Norseman (medieval Scandinavian). 

  • An ethnic Swede, Norwegian, Dane, Icelander or Faroe Islander. 

  • Scandinavian/Northern European seafarers, most familiarly raiders and pirates during the Viking age. 

name
  • A sea area between Scotland and Norway 

  • A city in Minnesota 

  • A town in Alberta, Canada 

pirate

noun
  • A bird which practises kleptoparasitism. 

  • A kind of marble in children's games. 

  • A criminal who plunders at sea; commonly attacking merchant vessels, though often pillaging port towns. 

  • An armed ship or vessel that sails for the purpose of plundering other vessels. 

  • One who breaks intellectual property laws by reproducing protected works without permission. 

adj
  • Illegally imitated or reproduced, said of a trademarked product or copyrighted work, or of the counterfeit itself. 

verb
  • To knowingly obtain an unauthorized copy of. 

  • To create and/or sell an unauthorized copy of. 

  • To appropriate by piracy; to plunder at sea. 

  • To engage in piracy. 

  • To entice an employee to switch from a competing company to one's own. 

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