Namtaru, Namtar n. (Sumerian and Akkadian mythology) A demon personifying death; messenger of the underworld goddess Ereshkigal bringing death to mankind.
... demon, Namtar, to strike her with disease in all parts of her body. The effect of Ishtar's fate was disastrous upon earth: growth and fertility ... — Myths of Babylonia and Assyria • Donald A. Mackenzie