jacktar vs landsman

jacktar

noun
  • A sailor in the Royal Navy. 

landsman

noun
  • A person who does not go to sea, who lacks the skills of a sailor or who is uncomfortable on ships or boats. 

  • A person who negotiates leases, contracts and other business deals between producers and landowners. 

  • Someone of a similar heritage or belief system 

  • A fellow Jew who comes from the same district or town, especially in Eastern Europe 

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