Where does “uur” come from?

uur (Dutch) comes from Middle Dutch ure, from Old Dutch ūra, from Old French houre, from Latin hōra, from Ancient Greek ὥρα, from Proto-Hellenic *worā, from Proto-Indo-European wēr-, from Proto-Indo-European wer- — to burn; to cover, heed, notice; squirrel.

uur (Dutch): an hour, a period of time; the hour, the time of...