perambulatory vs peregrine

perambulatory

adj

  • Relating to perambulation. 

peregrine

adj

  • Extrinsic or from without; exotic. 

  • Wandering, travelling, migratory. 

  • Lacking essential debility. 

  • Not native to a region or country; foreign; alien. 

noun

  • The peregrine falcon. 

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