footpace vs stairway

footpace

noun
  • A walking pace or step. 

  • A dais, or elevated platform; the highest step of the altar; a landing in a staircase. 

stairway

noun
  • A set of steps, with or without a case, that allow one to walk up or down. 

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