Where does “sjøis” come from?

sjøis (Norwegian Nynorsk) comes from Norwegian Nynorsk sjø, from Old Norse sjór, from Proto-Germanic saiwiz, from Proto-Germanic sīhwaną, from Proto-Indo-European seykʷ-, from Proto-Indo-European sey- — to be wet; dribble; run; to stretch one's arm;...

sjøis (Norwegian Nynorsk): sea ice

Definitions

  1. sea ice

Ancestry of “sjøis”, step by step

sjøis traces back through two separate lines of ancestry.

via Norwegian Nynorsk sjø

StepLanguageWordMeaning
1Norwegian Nynorsksjøa sea, ocean; a lake
2Old NorsesjórAlternative form of sær
3Proto-Germanicsaiwizsea, ocean
4Proto-Germanicsīhwanąto filter
5Proto-Indo-Europeanseykʷ-to moisten; to filter
6Proto-Indo-Europeansey-to be wet; dribble; run; to stretch one's arm;...

via Norwegian Nynorsk is

StepLanguageWordMeaning
1Norwegian Nynorskisice; ice cream
2Old Norseíssice
3Proto-Germanicīsąice
4Proto-Indo-Europeanh₁eyH-ice, frost
Every word from Proto-Indo-European sey-Every word from Proto-Indo-European seykʷ-Every word from Proto-Germanic sīhwaną