Where does “űr” come from?

űr (Hungarian) comes from Hungarian üreg, from Hungarian ür-.

űr (Hungarian): void, gap; space, outer space; emptiness

Definitions

Step	Language	Word	Meaning
1	Hungarian	üreg	cavity, hole, cave, pit, cavern, sinus
2	Hungarian	ür-	—

űr — Etymology, Origin & Word History | Etymology Explorer