Where does “lyst” come from?

lyst (Middle Low German) comes from Old Saxon lust, from Proto-West Germanic lustu, from Proto-Germanic lustuz, from Proto-Germanic lausaz, from Proto-Indo-European lewH- — louse.

Ancestry of “lyst”, step by step

StepLanguageWordMeaning
1Old Saxonlust
2Proto-West Germaniclustudesire, want, lust
3Proto-Germaniclustuzlust, desire, want
4Proto-Germaniclausazloose, free; empty, devoid; false, untrue
5Proto-Indo-EuropeanlewH-louse
Every word from Proto-Indo-European lewH-Every word from Proto-Germanic lausazEvery word from Proto-Germanic lustuz