'Henceforth' definitions:

Definition of 'henceforth'

From: WordNet
adverb
From this time forth; from now on; "henceforth she will be known as Mrs. Smith" [syn: henceforth, henceforward]

Definition of 'Henceforth'

From: GCIDE
  • Henceforth \Hence`forth"\, adv. From this time forward; henceforward. [1913 Webster]
  • I never from thy side henceforth to stray. --Milton. [1913 Webster]