trudge vs walkabout

trudge

noun
  • A tramp, i.e. a long and tiring walk. 

verb
  • To walk wearily with heavy, slow steps. 

  • To trudge along or over a route etc. 

walkabout

noun
  • A walking trip. 

  • An absence, usually from a regular place with a possibility of a return. 

  • A nomadic excursion into the bush, especially one taken by young teenage boys in certain ancient-custom honoring tribes. 

  • A public stroll by some celebrity to meet a group of people informally. 

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