Where does “flaithemnacht” come from?

flaithemnacht (Old Irish) comes from Old Irish flaithem, from Old Irish flaith, from Proto-Celtic wlatis, from Proto-Indo-European h₂wélh₁tis, from Proto-Indo-European h₂welh₁- — to rule; strong, powerful; hair; wool.

flaithemnacht (Old Irish): rule

Definitions

  1. rule

Ancestry of “flaithemnacht”, step by step

flaithemnacht traces back through two separate lines of ancestry.

via Old Irish flaithem

StepLanguageWordMeaning
1Old Irishflaithemprince; ruler
2Old Irishflaithlordship, sovereignty, rule; kingdom, realm;...
3Proto-Celticwlatissovereignty
4Proto-Indo-Europeanh₂wélh₁tis—
5Proto-Indo-Europeanh₂welh₁-to rule; strong, powerful; hair; wool

via Old Irish acht

StepLanguageWordMeaning
1Old Irishachtbut; provided; inflection of aigid: ##...
2Proto-Celticextosexcept, but
3Proto-Indo-Europeaneǵʰsout; from, out of
Every word from Proto-Indo-European h₂welh₁- →Every word from Proto-Indo-European h₂wélh₁tis →Every word from Proto-Celtic wlatis →