Where does “ty” come from?

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

Ancestry of “ty”, step by step

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

Words derived from “ty”

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