ahead vs hotfoot

ahead

adv
  • At an earlier time; beforehand; in advance. 

  • To a later time. 

  • To an earlier time. 

  • In or for the future. 

  • At or towards the front; in the direction one is facing or moving. 

  • So as to be further advanced, either spatially or in an abstract sense. 

hotfoot

adv
  • Hastily; without delay. 

verb
  • To run (a distance). 

adj
  • Moving with haste or zeal. 

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

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