Where does “Tyddewi” come from?
Tyddewi (Welsh) comes from Welsh tŷ, 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 “Tyddewi”, step by step
Tyddewi traces back through two separate lines of ancestry.
via Welsh tŷ
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | Welsh | tŷ | house |
| 2 | Middle Welsh | ty | — |
| 3 | Proto-Brythonic | tɨɣ | house |
| 4 | Proto-Celtic | tegos | house, dwelling |
| 5 | Proto-Indo-European | (s)teg- | to cover; pole, stick, beam |
via Welsh dewi
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | Welsh | dewi | Soft mutation of tewi |