Where does “יַלֵּף” come from?

יַלֵּף (Aramaic) comes from Aramaic אַלֵּף.

Ancestry of “יַלֵּף”, step by step

Step	Language	Word	Meaning
1	Aramaic	אַלֵּף	—

יַלֵּף — Etymology, Origin & Word History | Etymology Explorer