A better writting about it.
Eternal is a variable that normally defines a begin that do not show any binds with timespan. It also says that the begin is expected to not be connected with non-energy bases, like a body. Thus, gods and goddesses (as well demons) are special begins in this area. Their bodies share non-energy parts, but they can easily transfer form matter to energy and vice versa. Thus this effect owns them variable protection. Depending of the world, eternal begins can be killable with necessary energy output in specific areas. But this thing can only be archived by other of the same level or lower levels with very special categories. If we take the goddesses and demons from the AMG world, we see that they have a so close connection with the material side so it allows that they can be really killed by their own level.
And to mention, it is impossible to give the eternal "state". In addition to eternal state, they receive the inmortality effect as well. But there are non-material examples that almost renders them invincible to killing, and even when they use a material body (that's when they get inmortality effect).
Inmortality is a material only effect. It renders the subject immune to the common timespan of the time cycle. But an inmortal begin can be killed by any means, returning in any of the cases if the methods used were common. Normal killing will only stop them for a period of time. There are special methods of killing that can really "kill" an inmortal body. And inmortality can be given and taken as pleased if the subject is a low level like a mortal.
16-Jul-2006