Where does “Lausei” come from?

Lausei (German) comes from German Ei, from Middle High German ei, from Old High German ei, from Proto-West Germanic aij, from English ice, from Middle English is, from Old English īs, from Proto-West Germanic īs — ice, frost.

Ancestry of “Lausei”, step by step

Lausei traces back through two separate lines of ancestry.

via German Ei

StepLanguageWordMeaning
1GermanEiegg; something egg-shaped; testicle; ball
2Middle High Germaneiegg
3Old High Germaneian egg
4Proto-West Germanicaijegg
5EnglishiceWater in frozen form; Any frozen volatile...
6Middle Englishisice; That which is short-lived like ice; icy...
7Old Englishīsice
8Proto-West Germanicīsice
9Proto-Germanicīsąice
10Proto-Indo-Europeanh₁eyH-ice, frost

via German Laus

StepLanguageWordMeaning
1GermanLauslouse
2Middle High Germanlūsa louse
3Old High Germanlūs
4Proto-West Germanicluslouse
5Proto-Germaniclūslouse
6Proto-Indo-EuropeanlewH-louse
Every word from Proto-Indo-European h₁eyH-