P.S. English per study is of Turkish origin... even made the BBC news in 2012: http://www.bbc.co.uk/news/science-environment-19368988

Background
Map of Indo European migrations from circa 4000 to 1000 BC according to the Kurgan model. The Anatolian migration (indicated with a dotted arrow) could have taken place either across the Caucasus or across the Balkans. The magenta area corresponds to the assumed Urheimat (Samara culture, Sredny Stog culture). The red area corresponds to the area that may have been settled by Indo-European-speaking peoples up to circa 2500 BC, and the orange area by 1000 BC.

Around 5000 BC, the region centered in Hattusa, that would later become the core of the Hittite kingdom, was inhabited by people with a distinct culture who spoke a non-Indo-European language. The name "Hattic" is used by Anatolianists to distinguish this language from the Indo-European Hittite language that appeared on the scene at the beginning of the 2nd millennium BC and became the administrative language of the Hittite kingdom over the next six or seven centuries. As noted above, "Hittite" is a modern convention for referring to this language. The native term was Nesili, i.e. "In the language of Neša".[citation needed]

The early Hittites, whose prior whereabouts are unknown, borrowed heavily from the pre-existing Hattian and Hurrian cultures, and also from that of the Assyrian colonisers — in particular, the cuneiform writing and the use of cylindrical seals.[citation needed]

Since Hattic continued to be used in the Hittite kingdom for religious purposes, and there is substantial continuity between the two cultures, it is not known whether the Hattic speakers — the Hattians— were displaced by the speakers of Hittite, were absorbed by them, or just adopted their language.[citation needed]
Origins

It is generally assumed that the Hittites came into Anatolia some time before 2000 BC.[citation needed] While their earlier location is disputed, there has been strong evidence for more than a century that the home of the Indo-Europeans in the fourth and third millennia was in the Pontic Steppe, present day Ukraine around the Sea of Azov.[citation needed] This is known as the Kurgan Hypothesis.