Where does “Jaruum” come from?

Jaruum (Middle English) comes from Old English In Ġyrwum, 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 “Jaruum”, step by step

StepLanguageWordMeaning
1Old EnglishIn Ġyrwummarshes
2Old Englishġyrumud; marsh
3Proto-Germanicgurwijōmud
4Proto-Indo-Europeangʷʰer-warm, hot
5Proto-Indo-Europeangʷʰe-gʷʰór-e ~ gʷʰe-gʷʰr-ḗr
Every word from Proto-Indo-European gʷʰe-gʷʰór-e ~ gʷʰe-gʷʰr-ḗrEvery word from Proto-Indo-European gʷʰer-Every word from Proto-Germanic gurwijō