footstep vs stepping

footstep

noun
  • The act of taking a step. 

  • A step, as in a stair. 

  • The sound made by walking, running etc. 

  • The mark or impression left by a foot; a track. 

  • The distance between one foot and the next when walking; a pace. 

  • The indications or waypoints of a course or direction taken. 

stepping

noun
  • The act of taking a step. 

  • A specific iteration of a model of central processing unit, often distinguished by the addition or removal of features compared to earlier examples of the same processor, or the presence, or lack thereof, of specific bugs. 

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