[1] : The Collaborative International Dictionary of English v.0.48

namtar \namtar\, namtaru \namtaru\prop. n. sumerian and
   akkadian mythology
   a demon personifying death; messenger of the underworld
   goddess ereshkigal bringing death to mankind.

   syn: namtaru.
        wordnet 1.5

[2] : WordNet (r) 2.0

namtar
     n : a demon personifying death; messenger of the underworld
         goddess ereshkigal bringing death to mankind syn: namtaru
see also:
namtaru 

Namtar >> N Words
Namtar, definition of term: Namtar
namtar_pag1.html