Where does “énḟlaith” come from?

énḟlaith (Middle Irish) comes from Old Irish én, from Proto-Celtic ɸetnos, from Proto-Indo-European péth₂r̥, from Proto-Indo-European peth₂- — to spread out; to fly.

Ancestry of “énḟlaith”, step by step

énḟlaith traces back through two separate lines of ancestry.

via Old Irish én

StepLanguageWordMeaning
1Old Irishénbird; lo!
2Proto-Celticɸetnosbird
3Proto-Indo-Europeanpéth₂r̥wing; feather
4Proto-Indo-Europeanpeth₂-to spread out; to fly

via Old Irish flaith

StepLanguageWordMeaning
1Old Irishflaithlordship, sovereignty, rule; kingdom, realm;...
2Proto-Celticwlatissovereignty
3Proto-Indo-Europeanh₂wélh₁tis
4Proto-Indo-Europeanh₂welh₁-to rule; strong, powerful; hair; wool
Every word from Proto-Indo-European peth₂-Every word from Proto-Indo-European péth₂r̥Every word from Proto-Celtic ɸetnos