Where does “يَل” come from?

يَل (Old Anatolian Turkish) comes from Old Turkic 𐰘𐰠, from Proto-Turkic yẹl — wind.

Ancestry of “يَل”, step by step

Step	Language	Word	Meaning
1	Old Turkic	𐰘𐰠	—
2	Proto-Turkic	yẹl	wind

يَل — Etymology, Origin & Word History | Etymology Explorer