Pronunciation: (sOO-mēr'ē-un, -mer'-),[key] —adj. of or pertaining to Sumer, its people, or their language.
—n. 1. a native or inhabitant of Sumer.
2. a language of unknown affinities that was the language of the Sumerians and had, in the late 4th and 3rd millenniumsb.c.,a well-developed literature that is preserved in pictographic and cuneiform writing and represents the world's oldest extant written documents.