Where does “swach” come from?

swach (Middle High German) comes from Old High German swah, from Proto-West Germanic swak, from Proto-Indo-European swe(n)g-.

Ancestry of “swach”, step by step

StepLanguageWordMeaning
1Old High Germanswah—
2Proto-West Germanicswakswinging; swaying; yielding easily; pliable; weak
3Proto-Indo-Europeanswe(n)g-—

Words derived from “swach”

Every word from Proto-Indo-European swe(n)g- →Every word from Proto-West Germanic swak →Every word from Old High German swah →