argonaut vs freelance

argonaut

noun
  • An adventurer on a dangerous but rewarding quest. 

  • Any of several species of shelled octopods of the family Argonautidae (of which only the genus Argonauta is not extinct). 

freelance

noun
  • A medieval mercenary. 

  • Someone who sells their services to clients without a long-term employment contract. 

verb
  • To produce or sell services as a freelance. 

  • To work as a freelance. 

adj
  • Of, or relating to a freelance; without employment contract. 

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