Where does “fiers” come from?

fiers (Middle English) comes from Old French fers, from Latin ferus, from Proto-Indo-European ǵʰwer- — wild; wild animal.

Ancestry of “fiers”, step by step

StepLanguageWordMeaning
1Old Frenchferswild", "ferocious
2Latinferuswild, savage; uncivilized, uncultivated; untamed,...
3Proto-Indo-Europeanǵʰwer-wild; wild animal
Every word from Proto-Indo-European ǵʰwer- →Every word from Latin ferus →Every word from Old French fers →
fiers — Etymology, Origin & Word History | Etymology Explorer