Aeviternity
Eternity, thought of as an infinite past and future totality, in which events are contained in a matrix, like flies in amber.
Aeviternity differs from time, and from eternity, as the mean between them both, because time has "before" and "after"; aeviternity in itself has no "before" and "after" (which can, however, be annexed to it); while eternity has neither "before" nor "after," nor is it compatible with such at all.