Complex sentence: Today's Turkish name could derive from "tahta" (Turkish: wooden panel, wooden board), but more likely it derives from the Turkish "taht" (Turkish: Throne (Olympos-Throne of the Gods)).
Split into simpler sentences: Today's Turkish name could be from "tahta" (Turkish: wooden panel, wooden board) derive. More likely, however, is the derivative of the Turkish "Taht" (Turkish: Throne (Olympos-Throne of the Gods)).