hitch up vs upthrust

hitch up

verb
  • To pull or raise with a jerk. 

  • To attach (a horse, etc.) to a vehicle. 

  • To fasten up. 

upthrust

verb
  • To thrust something upwards. 

  • To be thrust upwards. 

noun
  • Buoyancy. 

  • An upward movement of part of the Earth's crust. 

  • An upward thrust. 

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