plod vs traipse

plod

verb
  • To walk or move slowly and heavily or laboriously (+ on, through, over). 

  • To toil; to drudge; especially, to study laboriously and patiently. 

  • To trudge over or through. 

noun
  • A slow or labored walk or other motion or activity. 

  • the police, police officers 

  • a police officer, especially a low-ranking one. 

traipse

verb
  • To walk (a distance or journey) wearily or with effort 

  • To travel with purpose; usually a significant or tedious amount. 

  • To walk about, especially when expending much effort, or unnecessary effort. 

  • to walk about or over (a place) aimlessly or insouciantly. 

noun
  • A long or tiring walk. 

  • A meandering walk. 

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