Where does “lac” come from?
lac (Old Irish) comes from Proto-Celtic laggos, from Proto-Indo-European (s)leh₁g- — weak, feeble; weak, faint.
Ancestry of “lac”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Proto-Celtic | laggos | — |
| 2 | Proto-Indo-European | (s)leh₁g- | weak, feeble; weak, faint |