Where does “*īṷiþia” come from?

*īṷiþia (Old Norse) comes from Germanic *īwiþia, from Proto-Germanic īhwaz, from Proto-Indo-European *h₁eyHw- — yew.

Ancestry of “*īṷiþia”, step by step

StepLanguageWordMeaning
1Germanic*īwiþia—
2Proto-Germanicīhwazyew; name of the I-rune
3Proto-Indo-European*h₁eyHw-yew
Every word from Proto-Indo-European *h₁eyHw- →Every word from Proto-Germanic īhwaz →Every word from Germanic *īwiþia →