Sog·di·an (sŏg'dē-ən) adj. Of or relating to an ancient Iranian people whose homeland was in the area around Samarqand and who had established settlements throughout Chinese Turkistan before the advent of Islam. n.
A member of this people.
The extinct Middle Iranian language of this people, known chiefly from texts and inscriptions dating from the second to the ninth centuries A.D.
[Latin Sogdiānus, from Greek Sogdoi, Sogdians, from Old Persian Sug(u)da-.]