For all time, forever, as in This land was given to the state in perpetuity. [First half of 1400s]
How to use in perpetuity in a sentence
This is a guy who has his son-in-law clean his eyeglasses, for crying out loud.
Her travel clique has been known to arrive at an airport, bags packed, passport-in-hand, within hours of spotting a deal.‘We Out Here’: Inside the New Black Travel Movement|Charlise Ferguson|January 4, 2015|DAILY BEAST
Earl Spencer adds, “Effectively, my great-grandfather sold his children to his father-in-law.”The Real-Life ‘Downton’ Millionairesses Who Changed Britain|Tim Teeman|December 31, 2014|DAILY BEAST
The lack of a gun is not likely to be a major problem for close-in air-to-air dogfights against other jets.
But those weapons are of limited utility, especially during close-in fights.
Such throats are trying, are they not?In case one catches cold; Ah, yes!
The commander-in-chief still kept him attached to the headquarter staff, and constantly employed him on special service.
So far Murat had always held subordinate commands; his great ambition was to become the commander-in-chief of an independent army.
Their jurisdictions overlapped and the Gascon would play second fiddle to no one save to his great brother-in-law.
But the novel disappeared under the clothes with amazing celerity as the voice of her sister-in-law demanded admission.The Pit Town Coronet, Volume I (of 3)|Charles James Wills