arduously vs hotfoot

arduously

adv
  • in an arduous manner 

hotfoot

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. 

verb
  • To run (a distance). 

adj
  • Moving with haste or zeal. 

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