AGGA SIGN Part 5: Sumerian Definition of Term
Now that we have given a thorough synopsis of the term AGGA, the simple difinition of the word is found in the Sumer Aryan Dictionary by L. Austine Waddell. It states on page 6 the following:
Sumerian : Spirits (? Fiery) of the Deep. Evil Spirits
Akkadian: Andh, Anun-aki, water spirits. Evil spirits.