IPA: /ˈhɛnsˌfɔrwərd/
KK: /hɛnsˈfɔrwərd/
From this time on; from now on.
The rules will apply henceforward, so everyone must follow them.
Henceforward → It is formed from "hence" (from Old English "hence", meaning from this place or time) and "forward" (from Old English "forweard", meaning toward the front or in the direction of). The word "henceforward" means from this point in time onward or in the future.
Think of 'from this place' ('hence') and 'toward the front' ('forward') to remember that 'henceforward' means from this point onward.