"According to Alexander Beider's exhaustive Dictionary of Ashkenazic Given Names, Kivl is a derived form of Yakef-Jacob-Yaakov by way of Akiva. He considers Akiva a "Variation" on Yaakov, and Kivel a "Derivation" by way of Akiva. "
This is incorrect.
Akiva and Yaakov are independant Hebrew names
Kivel is probably a derivative of Akiva. Kovel/Kopel is a derivative of Yaakov.
Chaim (Kopel) Freedman Petah Tikvah, Israel email chaimjan@...