Where does “tyðyn” come from?

tyðyn (Middle Welsh) comes from Middle Welsh ty, from Proto-Brythonic tɨɣ, from Proto-Celtic tegos, from Proto-Indo-European (s)teg- — to cover; pole, stick, beam.

Ancestry of “tyðyn”, step by step

StepLanguageWordMeaning
1Middle Welshty
2Proto-Brythonictɨɣhouse
3Proto-Celtictegoshouse, dwelling
4Proto-Indo-European(s)teg-to cover; pole, stick, beam

Words derived from “tyðyn

Every word from Proto-Indo-European (s)teg-Every word from Proto-Celtic tegosEvery word from Proto-Brythonic tɨɣ