Where does “óre” come from?

óre (Old Irish) comes from Latin hora, 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.

Ancestry of “óre”, step by step

Step	Language	Word	Meaning
1	Latin	hora	hour; time; o'clock
2	Ancient Greek	ὥρα	any defined period of time; season; climate
3	Proto-Hellenic	*worā	—
4	Proto-Indo-European	wēr-	true
5	Proto-Indo-European	wer-	to burn; to cover, heed, notice; squirrel

Every word from Proto-Indo-European wer- →Every word from Proto-Indo-European wēr- →Every word from Proto-Hellenic *worā →