IPA: /prɪˈmɔːrdɪəli/
KK: /praɪˈmɔrdɪəli/
In a way that relates to the earliest stages of development or existence.
The species evolved primordially, adapting to their environment over millions of years.
Primordially → It is formed from "primordialis" (from Latin, meaning original or first) and the suffix "-ly" (meaning in a manner of). The word "primordially" refers to something that exists in an original or fundamental manner.
Think of 'original' ('primordialis') to remember that 'primordially' means in an original or fundamental way.