Roget's Thesaurus of English Words and Phrases by Peter Mark Roget

everness†, aye, sempiternity†, immortality, athanasia†; interminability†, agelessness†, everlastingness &c adj.; perpetuation; continued existence, uninterrupted existence; perennity†; permanence (durability) 110. V. last forever, endure forever, go on forever; have no end. eternize, perpetuate. Adj. perpetual, eternal; everduring†, everlasting, ever-living, ever- flowing; continual, sempiternal†; coeternal; endless, unending; ceaseless, incessant, uninterrupted, indesinent†, unceasing; endless, unending, interminable, having no end; unfading†, evergreen, amaranthine; neverending†, never-dying, never-fading; deathless, immortal, undying, imperishable. Adv. perpetually &c adj.; always, ever, evermore, aye; for ever, for aye, till the end of the universe, forevermore, forever and a day, for ever and ever; in all ages, from age to age; without end; world without end, time without end; in secula seculorum [Lat.]; to the end of time, to the crack of doom, to the 'last syllable of recorded time' [Macbeth]; till doomsday; constantly &c (very frequently) 136. Phr. esto perpetuum [Lat.]; labitur et labetur in omne volubilis oevum [Lat.] [Horace]; but thou shall flourish in immortal youth [Addison]; Eternity! thou pleasing, dreadful thought [Addison]; her immortal part with angels lives [Romeo and Juliet]; ohne Rast [G.], [Goethe's motto]; ora e sempre [It].