What is "cothelas"

Cothelas , also known as Gudila ( fl. 4th century BC), was a king of the Getae who ruled an area near the Black Sea, between northern Thrace and the Danube. His polity also included the important port of Odessos. Around 341 BC he concluded a treaty with Macedonian king Philip II, becoming his vassal. This relation was further cemented when Cothelas' daughter, Meda of Odessa, became one of the Macedonian king's wives. The tomb of Cothelas is probably near the present day Bulgarian village of Sveshtari, in North-Eastern Bulgaria.