Your question contains your answer.... "Eternity," implies without end.
-Forever, or infinity can be used in conjunction with "eternity"
immortals have an eternity life
The word eternally is an adverb. It means to do something for eternity.
Forever everlasting
Apeirophobia
Hmmmm
The lumber supply in a forest is abundant.
The word 'eternity' appears four (4) times in the KJV Bible.
No, the word 'eternal' is an adjective, a word used to describe a noun.The noun form of the adjective 'eternal' is eternalness.A related noun form is eternity.
Corn was abundant this year. When food is abundant, humans thrive.
The word 'abundant' is an adjective, a word used to describe a noun.The noun form of the adjective 'abundant' is abundance.Examples:There is abundant sand in the desert. (adjective)There is an abundance of sand in the desert. (noun)
I think the word you want is "eternity".
eternity