The forms of denominating the city had changed during the centuries. The oldest form "Jakova" originates from the base "Jak" anthroponym dispersed among vendor Albanians and the Ottoman suffix "ovasi" that means a field. Therefore, "Jak ovasi" means Jak’s field, because Jak Vula, according to the tradition, allowed Hadum Aga to build the mosque and the above-mentioned objects with the condition that the city to be built would carry his name.
