uphill vs upwardly

uphill

adv
  • Up a slope, towards higher ground. 

  • With difficulty. 

noun
  • An uphill route. 

adj
  • Located up a slope or on a hill. 

  • Difficult or laborious. 

  • Going up a slope or a hill. 

upwardly

adv
  • In an upward manner. 

  • Towards a higher level, position or status. 

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