Where does “swer-yo-s” come from?

swer-yo-s (Proto-Indo-European) comes from Proto-Indo-European swer- — to ache; to fester; wound; injury.

Ancestry of “swer-yo-s”, step by step

Step	Language	Word	Meaning
1	Proto-Indo-European	swer-	to ache; to fester; wound; injury

swer-yo-s — Etymology, Origin & Word History | Etymology Explorer