Where does “unwy” come from?

unwy (Welsh) comes from Welsh wy, from Middle Welsh wy, from Old Welsh ui, from Proto-Celtic āwyom, from Proto-Indo-European h₂ōwyóm, from Proto-Indo-European h₂éwis — bird.

unwy (Welsh): identical (of twins), monozygotic, monozygous

Definitions

  1. identical (of twins), monozygotic, monozygous

Ancestry of “unwy”, step by step

unwy traces back through two separate lines of ancestry.

via Welsh wy

StepLanguageWordMeaning
1Welshwyegg
2Middle Welshwy—
3Old Welshui—
4Proto-Celticāwyomegg
5Proto-Indo-Europeanh₂ōwyómegg
6Proto-Indo-Europeanh₂éwisbird

via Welsh un

StepLanguageWordMeaning
1Welshunonly; one; one, individual
2Middle Welshunone
3Proto-Brythonicʉnone
4Proto-Celticoinosone
5Proto-Indo-Europeanóynosone; single
Every word from Proto-Indo-European h₂éwis →Every word from Proto-Indo-European h₂ōwyóm →Every word from Proto-Celtic āwyom →