hotfoot vs onrushing

hotfoot

adj
  • Moving with haste or zeal. 

verb
  • To run (a distance). 

adv
  • Hastily; without delay. 

noun
  • The prank of secretly inserting a match between the sole and upper of a victim's shoe and then lighting it. 

onrushing

adj
  • rushing or flowing forward 

  • attacking 

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