Where does “laŭso” come from?

laŭso (Esperanto) comes from English louse, from Middle English lous, from Old English lūs, from West Germanic *lūs, from Germanic *lūs, from Proto-Indo-European lewH- — louse.

laŭso (Esperanto): louse

Definitions

  1. louse

Ancestry of “laŭso”, step by step

laŭso traces back through two separate lines of ancestry.

via English louse

StepLanguageWordMeaning
1EnglishlouseA small parasitic wingless insect of the order...
2Middle Englishlouslouse; A person or thing worthy of contempt or...
3Old Englishlūslouse
4West Germanic*lūs—
5Germanic*lūs—
6Proto-Indo-EuropeanlewH-louse

via German Laus

StepLanguageWordMeaning
1GermanLauslouse
2Middle High Germanlūsa louse
3Old High Germanlūs—
4Proto-West Germanicluslouse
5Proto-Germaniclūslouse
Every word from Proto-Indo-European lewH- →Every word from Germanic *lūs →Every word from West Germanic *lūs →