etymologeek.com dictionary
Russian word шуй comes from Proto-Indo-European *sew-yo-, and later Proto-Slavic *šujь (Left.).

Шуй etymology history?

Шуй detailed word origin explanation

Dictionary entryLanguageDefinition
*sew-yo- Proto-Indo-European (ine-pro)
*šujь Proto-Slavic (sla-pro) Left.
шуи Old East Slavic (orv)
шуй Russian (rus)

Words with the same origin as шуй

Descendants of *sew-yo-
шуйца