Where does “Iis” come from?

Iis (North Frisian) comes from Old Frisian īs, from Proto-West Germanic īs, from Proto-Germanic īsą, from Proto-Indo-European h₁eyH- — ice, frost.

Iis (North Frisian): ice

Definitions

  1. ice

Ancestry of “Iis”, step by step

StepLanguageWordMeaning
1Old Frisianīs—
2Proto-West Germanicīsice
3Proto-Germanicīsąice
4Proto-Indo-Europeanh₁eyH-ice, frost
Every word from Proto-Indo-European h₁eyH- →Every word from Proto-Germanic īsą →Every word from Proto-West Germanic īs →