Kos Kos Kos or Cos (; ) is a Greek island, part of the Dodecanese island chain in the southeastern Aegean Sea, off the Anatolian coast of Turkey. Kos is the third largest island of the Dodecanese by area, after Rhodes and Karpathos; it has a population of 33,388 (2011 census), making it the second most populous of the Dodecanese, after Rhodes. The island measures , and is from the coast of the ancient region of Caria in Turkey. Administratively, Kos constitutes a municipality within the Kos regional unit, which is part of the South Aegean region. The principal town of
Koine Greek dialects and its own "Koine" form, which have preserved some of the ancient language's oral linguistic details which the written tradition has lost. For example, Pontic and Cappadocian Greek preserved the ancient pronunciation of etc.), while the Tsakonian language preserved the long α instead of η ( etc.) and the other local characteristics of Doric Greek. Dialects from the southern part of the Greek-speaking regions (Dodecanese, Cyprus, etc.), preserve the pronunciation of the double similar consonants (), while others pronounce in many words υ as ου or preserve ancient double forms ( etc.). Linguistic phenomena like the above imply that