Thenceforward
Definition 1 of 1

Time Reference
It is useful to indicate when a story or an event picks up from; thenceforward can help clarify timelines.

The decision was made, and thenceforward, things changed dramatically.
Formal Usage
In legal or formal contexts, using thenceforward emphasizes the importance of continuity.

The agreement was recognized, thenceforward making the terms binding.
Literary Nuance
Writers use thenceforward to add gravitas to their narrative, enhancing the weight of events.

The kingdom fell thenceforward into chaos.
Compare with
thereafteraftersubsequentforeverhenceforth
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