Sidetic is a member of the Anatolian branch of the Indo-European language family. It was used in the region of Pamphylia in Asia Minor. It is attested on coins dating from the 5th to the 3rd century BC and in two Greek-Sidetic inscriptions from the 3rd and 2nd century BC. It was written in the Sidetic script related to the Greek alphabet. The language is very porly understood and there is no attested example of adjective valence.

Bibliography:

Craig Melchert. 1995. Indo-European Languages of Anatolia. In: Jack M. Sasson (ed.), Civilizations of the Ancient Near East, 2151-2159. New York: MacMillan.