henceforth vs supervenient

henceforth

adv
  • Further within this document. 

  • From now on; from this time on. 

supervenient

adj
  • In a relationship with another set such that membership in the other set implies membership in the present set 

  • Supervening; occurring subsequently; coming after something, especially when not causally connected. 

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