Where does “deirfiúr” come from?
deirfiúr (Irish) comes from Old Irish derbṡiur, from Old Irish derb, from Proto-Celtic derwos, from Proto-Indo-European drewh₂-, from Proto-Indo-European dóru, from Proto-Indo-European drew- — hard, firm, strong, solid; hard, fast; tree.
deirfiúr (Irish): sister
Ancestry of “deirfiúr”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Old Irish | derbṡiur | — |
| 2 | Old Irish | derb | sure, certain, fixed, determinate |
| 3 | Proto-Celtic | derwos | firm |
| 4 | Proto-Indo-European | drewh₂- | steady, firm |
| 5 | Proto-Indo-European | dóru | tree |
| 6 | Proto-Indo-European | drew- | hard, firm, strong, solid; hard, fast; tree |
Words derived from “deirfiúr”