Where does “suwiros” come from?

suwiros (Proto-Celtic) comes from Proto-Celtic wīros, from Proto-Indo-European weh₁ros, from Proto-Indo-European weh₁- — true.

Ancestry of “suwiros”, step by step

suwiros traces back through two separate lines of ancestry.

via Proto-Celtic wīros

StepLanguageWordMeaning
1Proto-Celticwīrostrue
2Proto-Indo-Europeanweh₁rostrue
3Proto-Indo-Europeanweh₁-true

via Proto-Celtic su-

StepLanguageWordMeaning
1Proto-Celticsu-good, well
2Proto-Indo-Europeanh₁su-good
3Proto-Indo-Europeanh₁wes-good; to be cheerful, happy; to eat, to feast

Words derived from “suwiros

Every word from Proto-Indo-European weh₁-Every word from Proto-Indo-European weh₁rosEvery word from Proto-Celtic wīros