Where does “Gyrwum” come from?

Gyrwum (Old English) comes from Old English ġyru, from Proto-Germanic gurwijō, from Proto-Indo-European gʷʰer-, from Proto-Indo-European gʷʰe-gʷʰór-e ~ gʷʰe-gʷʰr-ḗr.

Ancestry of “Gyrwum”, step by step

Step	Language	Word	Meaning
1	Old English	ġyru	mud; marsh
2	Proto-Germanic	gurwijō	mud
3	Proto-Indo-European	gʷʰer-	warm, hot
4	Proto-Indo-European	gʷʰe-gʷʰór-e ~ gʷʰe-gʷʰr-ḗr	—

Every word from Proto-Indo-European gʷʰe-gʷʰór-e ~ gʷʰe-gʷʰr-ḗr →

Gyrwum — Etymology, Origin & Word History | Etymology Explorer