earthbound vs earthly

earthbound

adj
  • Confined to the Earth; unable to leave Earth, either physically or spiritually. 

  • Unimaginative or mundane. 

  • Heading towards Earth. 

earthly

adj
  • Relating to the earth or this world, as opposed to heaven; terrestrial. 

  • Used for emphasis 

noun
  • That which is of the earth or earthly; a terrestrial being. 

  • A slightest chance (of success etc.) or idea (about something). 

adv
  • in an earthly manner. 

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