coeternity

co·e·ter·ni·ty

 (kō′ĭ-tûr′nĭ-tē)
n.
Existence for eternity with another or others.

coeternity

(ˌkəʊɪˈtɜːnɪtɪ)
n
existence for, from, or in eternity with another being

coeternity

the state of eternal coexistence; eternal coexistence with another eternal entity. — coetemal, adj.
See also: Time
the state of eternal coexistence; eternal coexistence with another eternal entity. — coeternal, adj.
See also: Religion
References in periodicals archive ?
From supreme goodness, it is necessary that there be in the persons supreme communicability, supreme consubstantiality, supreme configurability, supreme coequality, supreme coeternity, and supreme mutual intimacy by which one is necessarily in the other by supreme interpenetration and one acts with the other in absolute lack of division of the substance, power and operation of the most blessed Trinity itself.
65) William is careful to note that the reason does not lie in any impotentia on the part of God; "no creature was able to have been produced co-eternal with him," because, as we are told, it is unintelligible to construe a creature as capable of coeternity with him.