put down roots vs sojourn

put down roots

verb
  • To establish oneself in a place; to become settled. 

sojourn

verb
  • To reside somewhere temporarily, especially as a guest or lodger. 

noun
  • A short stay somewhere. 

  • A temporary residence. 

How often have the words put down roots and sojourn occurred in a corpus of books? (source: Google Ngram Viewer )