Where does “lās” come from?

lās (Old Frisian) comes from Proto-West Germanic laus, from Proto-Germanic lausaz, from Proto-Indo-European lewH- — louse.

Ancestry of “lās”, step by step

StepLanguageWordMeaning
1Proto-West Germaniclausloose, free
2Proto-Germaniclausazloose, free; empty, devoid; false, untrue
3Proto-Indo-EuropeanlewH-louse

Words derived from “lās”

Every word from Proto-Indo-European lewH- →Every word from Proto-Germanic lausaz →Every word from Proto-West Germanic laus →