IPA: /rɪˈvɜːrsəbli/
KK: /rɪˈvɜrsəbli/
In a manner that allows something to be returned to its original state or condition.
The chemical reaction can be reversibly altered by changing the temperature.
Reversibly → It is formed from "re-" (meaning again) and "vertere" (meaning to turn). The word "reversibly" means in a manner that allows something to be turned back or returned to its original state.
Think of 'turning back' ('vertere') again ('re-') — that's why reversibly means something can be turned back to its original state.