IPA: /rɪˈfjuːdʒiəm/
KK: /rɛˈfjuːdʒiəm/
A place that has not changed much over time, providing a safe environment for certain plants and animals to live, especially during changes in climate.
The refugium allowed rare species to survive during the harsh climate changes.
Refugium → It is formed from "re-" (meaning back or again) and "fugere" (meaning to flee). The word "refugium" refers to a place to which one flees back for safety or refuge.
Think of going 'back' ('re-') to a place where you can 'flee' ('fugere') for safety — that's what refugium means.