The quality of lasting forever or indefinitely; something that continues without end.
From Latin 'perpetuitas,' derived from 'perpetuus' (continuous, eternal), from 'perpetim' (continuously). The term became important in property law and contracts.
Legal documents often grant things 'in perpetuity'—like land trusts or endowments—but perpetuity has driven some weird situations: the 'Perpetual Stew' in an old English pub kept the same pot simmering for over a century by constantly adding new ingredients to old broth!
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