Where does “swak” come from?

swak (Old Dutch) comes from Proto-West Germanic swak, from Proto-Indo-European swe(n)g-.

Ancestry of “swak”, step by step

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

Words derived from “swak”

Every word from Proto-Indo-European swe(n)g- →Every word from Proto-West Germanic swak →
swak — Etymology, Origin & Word History | Etymology Explorer