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ne plus ultra

[nee pluhs uhl-truh, ney; Latin ne ploo s oo l-trah]
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noun
  1. the highest point; acme.
  2. the most intense degree of a quality or state.

Origin of ne plus ultra

1690–1700; < New Latin, Latin nē plūs ultrā (may you) not (go) further beyond (this point)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for ne plus ultra

ne plus ultra

noun
  1. the extreme or perfect point or state

Word Origin

literally: not more beyond (that is, go no further), allegedly a warning to sailors inscribed on the Pillars of Hercules at Gibraltar
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for ne plus ultra

"utmost limit to which one can go," Latin, literally "no more beyond;" the motto traditionally inscribed on the Pillars of Hercules.

Online Etymology Dictionary, © 2010 Douglas Harper