Where does “rád” come from?
rád (Old Irish) comes from Old Irish rádaid, from Proto-Celtic rādīti, from Proto-Indo-European Hreh₁dʰ-, from Proto-Indo-European h₂reh₁-, from Proto-Indo-European h₂er- — to fit, to fix, to put together.
Ancestry of “rád”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Old Irish | rádaid | — |
| 2 | Proto-Celtic | rādīti | — |
| 3 | Proto-Indo-European | Hreh₁dʰ- | to think; to arrange; to succeed, accomplish |
| 4 | Proto-Indo-European | h₂reh₁- | to think, reason; to arrange |
| 5 | Proto-Indo-European | h₂er- | to fit, to fix, to put together |