Where does “meta-iaith” come from?

meta-iaith (Welsh) comes from Welsh iaith, from Middle Welsh ieith, from Proto-Brythonic jeiθ, from Proto-Celtic yextis, from Proto-Indo-European yek- — to utter.

meta-iaith (Welsh): metalanguage

Definitions

  1. metalanguage

Ancestry of “meta-iaith”, step by step

StepLanguageWordMeaning
1Welshiaithlanguage
2Middle Welshieith—
3Proto-Brythonicjeiθlanguage
4Proto-Celticyextislanguage, speech
5Proto-Indo-Europeanyek-to utter
Every word from Proto-Indo-European yek- →Every word from Proto-Celtic yextis →Every word from Proto-Brythonic jeiθ →