Where does “ardchathair” come from?

ardchathair (Irish) comes from Irish cathair, from Old Irish cathaír, from Latin cathēdra, from Ancient Greek καθέδρα, from Ancient Greek κατά, from Ancient Greek καταστερίζω, from Ancient Greek ἀστήρ, from Proto-Hellenic astḗr — to be/become dry; to burn, to glow; hearth.

ardchathair (Irish): metropolis; capital city

Definitions

  1. metropolis; capital city

Ancestry of “ardchathair”, step by step

StepLanguageWordMeaning
1Irishcathaircity; enclosed church establishment; monastic...
2Old Irishcathaírchair
3Latincathēdraarmchair (having cushions and supports)
4Ancient Greekκαθέδραseat; sitting posture; teacher's chair,...
5Ancient Greekκατά
6Ancient Greekκαταστερίζωto place among the stars; I put among the stars
7Ancient Greekἀστήρa celestial body; illustrious person; starfish
8Proto-Hellenicastḗrstar
9Proto-Indo-Europeanh₂stḗrstar
10Proto-Indo-Europeanh₂eHs-to be/become dry; to burn, to glow; hearth
Every word from Proto-Indo-European h₂eHs-Every word from Proto-Indo-European h₂stḗrEvery word from Proto-Hellenic astḗr