everlastingness

noun

1. (uncountable)the state or quality of being everlasting

   “August felt the everlastingness of love; as many another man in a supreme crisis has felt it.”

   “Once the name I gave to hours Like this was melancholy, when It was not happiness and powers Coming like exiles home again, And weaknesses quitting their bowers, Smiled and enjoyed, far off from men, Moments of everlastingness.”