on foot vs peripatetic

on foot

prep
  • In progress or in preparation; active, in operation. 

  • On one's feet; walking, jogging or running but not in a vehicle or on the back of an animal. 

peripatetic

adj
  • Constantly travelling. 

  • Tending to walk about. 

noun
  • One who walks about; a pedestrian; an itinerant. 

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