|Region||Keris, New Endralonian diaspora|
|Native speakers||65 million (date missing)|
|Official language in||New Endralon|
Zyldavian (Zyldavisze täl), the Keris sub-dialect of Endralonian, is the main language of the Zyldavs, and was once the language of government and higher education, during the Colonial and the Communist eras of the nation's existence. It is still officially recognized, and an important tongue in scholarly endeavors and international diplomacy and business, as it (and closely related languages) are spread throughout Terra. Its use is mainly concentrated in Sodali Province.