adverb

henceforth

hens-FORTH/ˌhensˈfɔːrθ/

From this time forward.

The arrows run henceforth from the highlighted present day across future calendars.

Highlighted present day and arrows continuing across future calendars.
Etymology

The “from here” idea in hence combines with forth’s “onward.” Applied to time, the compound treats the present moment as a starting point and looks forward from it.

In context

Oculus Imperia54:36
no more shall the threat of sorcery be allowed to take the warriors of the astartes henceforth it is my will that no legion will maintain a librarious department
The Edict of Nikaea: A History (Warhammer 40k & Horus Heresy Lore)

More examples

  • The committee will henceforth meet on Mondays.
  • Henceforth, please send invoices to our new address.
  • This document is henceforth known as the agreement.

Similar words

hereafter
Also means from now on, but can suggest the afterlife.
thereafter
Begins at a previously mentioned time, not necessarily now.