Complex sentence: Presumably it is not possible to conclusively determine a definite etymology for the name of the god Veles, though there are several Proto-Indo-European roots that are all closely related to the nature of Veles and his domains.
Split into simpler sentences: Presumably it is not possible to conclusively determine a definite Etymology for the name of the god Veles. Though there are several Proto-Indo-European roots that are all closely related to the nature of Veles and his domains.