Where does “wemme” come from?

wemme (Middle English) comes from Old English wamm, from Proto-Germanic wammaz, from Proto-Indo-European wemh₁- — to spew, to vomit.

Ancestry of “wemme”, step by step

Step	Language	Word	Meaning
1	Old English	wamm	stain, spot, scar, disgrace, defect, defilement,...
2	Proto-Germanic	wammaz	spot, stain, blemish
3	Proto-Indo-European	wemh₁-	to spew, to vomit

wemme — Etymology, Origin & Word History | Etymology Explorer