Where does “wǣst” come from?

wǣst (Old English) comes from Proto-Germanic wahstuz, from Indo-European *h₂weks-.

Ancestry of “wǣst”, step by step

StepLanguageWordMeaning
1Proto-Germanicwahstuzsize, growth
2Indo-European*h₂weks-—

Words derived from “wǣst”

Every word from Indo-European *h₂weks- →Every word from Proto-Germanic wahstuz →
wǣst — Etymology, Origin & Word History | Etymology Explorer