Where does “Iwona” come from?

Iwona (Polish) comes from French Yvonne, from French Yves, from Proto-Celtic īwos, from Proto-Indo-European *h₁eyHw- — yew.

Ancestry of “Iwona”, step by step

StepLanguageWordMeaning
1FrenchYvonne
2FrenchYvesborne by two French saints, and known in medieval romance
3Proto-Celticīwosyew
4Proto-Indo-European*h₁eyHw-yew

Words derived from “Iwona

Every word from Proto-Indo-European *h₁eyHw-Every word from Proto-Celtic īwosEvery word from French Yves