Where does “bölmək” come from?

bölmək (Azerbaijani) comes from Old Anatolian Turkish böl-, from Proto-Turkic bȫl- — to divide, separate; to divide, separate,...

Ancestry of “bölmək”, step by step

Step	Language	Word	Meaning
1	Old Anatolian Turkish	böl-	to separate
2	Proto-Turkic	bȫl-	to divide, separate; to divide, separate,...