New Worlder vs US-ian

New Worlder

noun

  • An inhabitant of the New World or Americas. 

US-ian

noun

  • An inhabitant or citizen of the United States of America. 

adj

  • Of or pertaining to the United States of America. 

How often have the words New Worlder and US-ian occurred in a corpus of books? (source: Google Ngram Viewer )