Where does “seiniau” come from?
seiniau (Welsh) comes from Welsh Iau, from Middle Welsh ieu, from Brythonic *Yow, from Latin Iovem, from Proto-Indo-European dyew- — to be bright; sky, heaven.
Ancestry of “seiniau”, step by step
seiniau traces back through two separate lines of ancestry.
via Welsh Iau
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | Welsh | Iau | Jupiter, Thursday |
| 2 | Middle Welsh | ieu | — |
| 3 | Brythonic | *Yow | — |
| 4 | Latin | Iovem | — |
| 5 | Proto-Indo-European | dyew- | to be bright; sky, heaven |
via Welsh sain
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | Welsh | sain | sound |