The main dialect, Kalaallisut or West Greenlandic, has been the official language of the Greenlandic autonomous territory since June 2009; this is a move by the Greenlandic government to strengthen the language in its competition with the colonial language, Danish. The second dialect is East Greenlandic (Tunumiisut).The Thule Inuit of Greenland, Inuktun or Polar Eskimo, is a recent arrival, and a dialect of Inuktitut. Greenlandic is a polysynthetic language that allows the creation of long words by stringing together roots and suffixes.he second dialect is East Greenlandic (Tunumiisut). The Thule Inuit of Greenland, Inuktun or Polar Eskimo, is a recent arrival, and a dialect of Inuktitut. Greenlandic is a polysynthetic language that allows the creation of long words by stringing together roots and suffixes.