Where does “ardchathaoir” come from?

ardchathaoir (Irish) comes from Irish cathaoir, 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.

ardchathaoir (Irish): highchair

Definitions

  1. highchair

Ancestry of “ardchathaoir”, step by step

ardchathaoir traces back through two separate lines of ancestry.

via Irish cathaoir

StepLanguageWordMeaning
1Irishcathaoirchair; seat, throne; stool, stump
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

via Irish ard

StepLanguageWordMeaning
1Irishardhigh, tall; loud; ambitious
2Old Irishardhigh; height
3Proto-Celticardwoshigh
4Proto-Indo-Europeanh₃erdʰwós
5Proto-Indo-Europeanh₃erdʰ-to increase, grow; upright, high
6Proto-Indo-European-wósCreates adjectives from verb stems
Every word from Proto-Indo-European h₂eHs-Every word from Proto-Indo-European h₂stḗrEvery word from Proto-Hellenic astḗr