Where does “byxis” come from?

byxis (Swedish) comes from Swedish is, from Old Swedish is, from Old Norse íss, from Proto-Germanic īsą, from Proto-Indo-European h₁eyH- — ice, frost.

byxis (Swedish): shaky, anxious

Definitions

  1. shaky, anxious

Ancestry of “byxis”, step by step

byxis traces back through two separate lines of ancestry.

via Swedish is

StepLanguageWordMeaning
1SwedishisIce; frozen water; Ice; a sheet of ice lying on a...
2Old Swedishis
3Old Norseíssice
4Proto-Germanicīsąice
5Proto-Indo-Europeanh₁eyH-ice, frost

via Swedish byxa

StepLanguageWordMeaning
1Swedishbyxapants, trousers
2Norwegian Nynorskbyksato jump suddenly and vigorously; definite plural...
3Old Norsebyxajump
Every word from Proto-Indo-European h₁eyH-Every word from Proto-Germanic īsąEvery word from Old Norse íss