area around the Kuma-Manych depression . Nominally, it belongs to an independent branch of the IE family, though many characteristics point to a pre-Proto-Greek or Anatolian origin. Contents 1 Culture 2 Phonology 2.1 Major Historical Developments 2.1.1 Laryngeal Preservation 2.1.2 Syllabic Resonants 2.1.3 Labiovelars 2.1.4 Grassmann's Law 2.2 Allophony 3 Morphology