hotfoot vs robust

hotfoot

adj
  • Moving with haste or zeal. 

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). 

robust

adj
  • Requiring strength or vigor. 

  • Sensible (of intellect etc.); straightforward, not given to or confused by uncertainty or subtlety. 

  • Designed or evolved in such a way as to be resistant to total failure despite partial damage. 

  • Not greatly influenced by errors in assumptions about the distribution of sample errors. 

  • Resistant or impervious to failure regardless of user input or unexpected conditions. 

  • Of an individual or skeletal element: strongly built; muscular; not gracile. 

  • Violent; rough; rude. 

  • Evincing strength and health; strong; (often, especially) both large and healthy. 

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