SG Heritage Dictionary

Perpetuity [Noun] Webster's Dictionary 1828

1. Endless duration; continuance to eternity.

2. Continued uninterrupted existence, or duration for an indefinite period of time; as the perpetuity of laws and institutions; the perpetuity of fame.

3. Something of which there will be no end.

Perpetuity [Noun] Webster's Dictionary 1913

1. The quality or state of being perpetual; as, the perpetuity of laws.

2. Something that is perpetual.

3. Endless time.

4. The number of years in which the simple interest of any sum becomes equal to the principal.

5. The number of years' purchase to be given for an annuity to continue forever.

6. A perpetual annuity.

7. Duration without limitations as to time.

8. The quality or condition of an estate by which it becomes inalienable, either perpetually or for a very long period; also, the estate itself so modified or perpetuated.

Infinity Roget’s Thesaurus §105

N. infinity, infinitude, infiniteness, perpetuity, boundlessness

V. be infinite, know no limits, have no limits, know no bounds, have no bounds, go on for ever

Adj. infinite, immense, numberless, countless, sumless, measureless, innumerable, immeasurable, incalculable, illimitable, inexhaustible, interminable, unfathomable, unapproachable, exhaustless, indefinite, without number, without measure, without limit, without end, incomprehensible, limitless, endless, boundless, termless, untold, unnumbered, unmeasured, unbounded, unlimited, illimited, perpetual

Adv. infinitely, ad infinitum

Phr. "as boundless as the sea", 1, absolute time

Diuturnity Roget’s Thesaurus §110

N. diuturnity, a long time, a length of time, an age, a century, an eternity, slowness, perpetuity, blue moon, coon's age, dog's age, durableness, durability, persistence, endlessness, lastingness, continuance, standing, permanence survival, survivance, longevity, distance of time, protraction of time, prolongation of time, extension of time, delay

V. last, endure, stand, remain, abide, continue, brave a thousand years, tarry, drag on, drag its slow length along, drag a lengthening chain, protract, prolong, spin out, eke out, draw out, lengthen out, temporize, gain time, make time, talk against time, outlast, outlive, survive, live to fight again

Adj. durable, lasting, of long duration, of long-standing, permanent, endless, chronic, long-standing, intransient, intransitive, intransmutable, persistent, lifelong, livelong, longeval, long-lived, macrobiotic, diuturnal, evergreen, perennial, sempervirent, sempervirid, unrelenting, unintermitting, unremitting, perpetual, lingering, protracted, prolonged, spun out, long-pending, long- winded, slow

Adv. long, for a long time, for an age, for ages, for ever so long, for many a long day, long ago, longo intervallo, all the day long, all the year round, the livelong day, as the day is long, morning noon and night, hour after hour, day after day, &c, for good, permanently

Perpetuity Roget’s Thesaurus §112

N. perpetuity, eternity, everness, aye, sempiternity, immortality, athanasia, interminability, agelessness, everlastingness, 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, 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, to the end of time, to the crack of doom, to the "last syllable of recorded time", till doomsday, constantly

Phr. esto perpetuum, labitur et labetur in omne volubilis oevum, "but thou shall flourish in immortal youth", "eternity! thou pleasing, dreadful thought", "her immortal part with angels lives", ohne rast, ora e sempre