Where does “union” come from?

union (Welsh) comes from Welsh un, from Middle Welsh un, from Proto-Brythonic ʉn, from Proto-Celtic oinos, from Proto-Indo-European óynos — one; single.

union (Welsh): exact

Definitions

  1. exact

Ancestry of “union”, step by step

union traces back through two separate lines of ancestry.

via Welsh un

StepLanguageWordMeaning
1Welshunonly; one; one, individual
2Middle Welshunone
3Proto-Brythonicʉnone
4Proto-Celticoinosone
5Proto-Indo-Europeanóynosone; single

via Welsh iawn

StepLanguageWordMeaning
1Welshiawnvery; amends; compensation

Words derived from “union

Every word from Proto-Indo-European óynos
union — Etymology, Origin & Word History | Etymology Explorer