Where does “-lōs” come from?

-lōs (Old Dutch) comes from Proto-West Germanic *-laus, from Proto-Germanic -lausaz, from Proto-Germanic lausaz, from Proto-Indo-European lewH- — louse.

Ancestry of “-lōs”, step by step

StepLanguageWordMeaning
1Proto-West Germanic*-lauswithout, -less
2Proto-Germanic-lausaz-less, lacking, devoid of
3Proto-Germaniclausazloose, free; empty, devoid; false, untrue
4Proto-Indo-EuropeanlewH-louse

Words derived from “-lōs”

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