What does Zimabu Eter mean?

I just finished seeing The Fourth Kind and am curious as to what this implies. It is Sumerian in origin. So far, I’ve done the following research:

Spirit of Zi- (zi is a masculine word as opposed to Ni which is feminine)

Ma-(as a lone word is>)but / and

bu- ?

Eter – Eteru means’save,’ I’m not sure what the ‘u’ adds to the meaning of the word.

(ezeru-curse{one letter change t -> z})

Could be useful for’mabu’:

rABU – Compensate

rABU as a substitute

Excellent – rABU (to make excellent, to rear)

bABU – Gate

qABU – talk

nABU – Prophet (seer)

Excellent – rABUm

seated – wasABU

alaksu qABU commanded

etutu/ asBU – Darkness

ebeBU – Declare Innocent

qitruBU – Draw Near

reBU is the fourth letter.

libBU – Heart

ezeBU – Made Out (to have made out something)

rakBU is a messenger.

qereBU is close by. (to approach)

ebeBU – Pure (to be clean)

The seventh – seBU (Seven – SEBET)

What Im guessing > where this translation may be going : Spirit whom you cannot be saved from.

Just a hunch! Please let me know if you have any u0442her.