The story
- Proto-Indo-European*ḱe?
- Proto-Indo-European*ḱómder.?
- Proto-Indo-European*sem-der.?
- Proto-Hellenic*ksún
- Ancient Greekσύν (sún)
- Ancient Greekσῠν- (sŭn-)
- Proto-Indo-European*sed-
- Proto-Indo-European*sodós?
- Proto-Hellenic*hodós
- Ancient Greekὁδός (hodós)
- Ancient Greekσῠ́νοδος (sŭ́nodos)
- Latinsynodus
- Middle Welshseneð
- Welshsenedd
- WelshSenedd
- English todaySenedd
Unadapted borrowing from Welsh Senedd, from senedd, from Middle Welsh seneð, borrowed from Latin synodus. Doublet of synod. Compare Middle Breton senez (“synod”) and phonetically Old English senoþ, Middle High German senet. Later likely influenced by or merged with Latin senātus.
Etymology from Wiktionary, CC BY-SA 4.0.