Where does “néarfheadán” come from?
néarfheadán (Irish) comes from Irish feadán, from Old Irish fetán, from Old Irish fet, from Proto-Celtic *swizdā, from Proto-Celtic *swizdeti, from Proto-Indo-European sweysd- — to hiss.
néarfheadán (Irish): neural tube
Ancestry of “néarfheadán”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Irish | feadán | tube; duct; tubular thing |
| 2 | Old Irish | fetán | whistle, pipe |
| 3 | Old Irish | fet | whistling, hissing, the sound of a sword cleaving... |
| 4 | Proto-Celtic | *swizdā | — |
| 5 | Proto-Celtic | *swizdeti | — |
| 6 | Proto-Indo-European | sweysd- | to hiss |