Where does “bloreion” come from?

bloreion (Welsh) comes from Welsh blorai, from Welsh -ai, from Middle Welsh -ei.

Ancestry of “bloreion”, step by step

StepLanguageWordMeaning
1Welshblorainitrogen
2Welsh-aiee
3Middle Welsh-ei—
Every word from Middle Welsh -ei →Every word from Welsh -ai →Every word from Welsh blorai →