Where does “iaigh” come from?
iaigh (Irish) comes from Old Irish íadaid, from Proto-Celtic *eɸidāti, from Proto-Celtic dāti, from Proto-Indo-European déh₃t, from Proto-Indo-European deh₃- — to give.
Ancestry of “iaigh”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Old Irish | íadaid | — |
| 2 | Proto-Celtic | *eɸidāti | — |
| 3 | Proto-Celtic | dāti | to give |
| 4 | Proto-Indo-European | déh₃t | to give |
| 5 | Proto-Indo-European | deh₃- | to give |