Where does “úyna” come from?

úyna (Taos) comes from Spanish hulla, from French houille, from Walloon hulhes, from Frankish hukila, from Proto-Indo-European kēwp-.

úyna (Taos): charcoal

Definitions

Step	Language	Word	Meaning
1	Spanish	hulla	bituminous coal
2	French	houille	coal
3	Walloon	hulhes	—
4	Frankish	hukila	pile, mound
5	Proto-Indo-European	kēwp-	—

úyna — Etymology, Origin & Word History | Etymology Explorer