Where does “آیلق” come from?

آیلق (Ottoman Turkish) comes from Ottoman Turkish آی, from Old Anatolian Turkish آیْ.

Ancestry of “آیلق”, step by step

Step	Language	Word	Meaning
1	Ottoman Turkish	آی	moon; month
2	Old Anatolian Turkish	آیْ	—

آیلق — Etymology, Origin & Word History | Etymology Explorer