Where does “úr” come from?

úr (Middle Irish) comes from Proto-Celtic ɸūros, from Proto-Indo-European puHrós, from Proto-Indo-European pewH- — to be clean, pure.

Ancestry of “úr”, step by step

StepLanguageWordMeaning
1Proto-Celticɸūrosfresh
2Proto-Indo-EuropeanpuHróswheat
3Proto-Indo-EuropeanpewH-to be clean, pure

Words derived from “úr”

Every word from Proto-Indo-European pewH- →Every word from Proto-Indo-European puHrós →Every word from Proto-Celtic ɸūros →
úr — Etymology, Origin & Word History | Etymology Explorer