emigrant vs itinerant

emigrant

noun
  • Someone who leaves a country to settle in a new country. 

  • Any of various pierid butterflies of the genus Catopsilia. Also called a migrant. 

itinerant

noun
  • A member of the Travelling Community, whether settled or not. 

  • One who travels from place to place. 

adj
  • Habitually travelling from place to place. 

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