Anatolian languages

The Anatolian languages are an extinct branch of Indo-European languages that were spoken in Anatolia, part of present-day Turkey. The best known Anatolian language is Hittite, which is considered the earliest-attested Indo-European language.

Quotes

 * It has often been remarked - and not without reason - that although the grammar of the Anatolian languages would be recognizably Indo-European, the vocabulary would be less so. This is usually attributed to the deeply penetrating influences exercised by strange surroundings not only while the Anatolians were en route, but also after their arrival in Anatolia.
 * H.J. Houwinkten Cate, in Encyclopedia Britannica, quoted in Talageri, The Aryan Invasion Theory and Indian Nationalism (1993)