eventually vs henceforward

eventually

adv
  • In the end; at some later time, especially after a long time, a series of problems, struggles, delays or setbacks. 

  • Possibly, potentially, perhaps 

  • For some tail; for all terms beyond some term; with only finitely many exceptions. 

henceforward

adv
  • from now on; from this time on 

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