downward vs earthwards

downward

adj

  • Moving, sloping or oriented downward. 

  • Located at a lower level. 

adv

  • At a lower level. 

  • Southward. 

  • Toward a lower level, whether in physical space, in a hierarchy, or in amount or value. 

earthwards

adj

  • Towards the earth; earthward. 

adv

  • Towards the earth; earthward. 

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