The Sidetic language is a member of the extinct Anatolian branch of the Indo-European language family known from legends of coins dating to the period of approx. the 5th to 3rd centuries BC found in Side at the Pamphylian coast. The Greek historian Arrian mentions the existece of a peculiar indigenous language in the city of Side. Sidetic is probably a mixture of Lydian, Carian and Lycian.