ULTRA'S

ultra

[uhl-truh]
adjective
1.
going beyond what is usual or ordinary; excessive; extreme.
noun
2.
an extremist, as in politics, religion, fashion, etc.
3.
(initial capital letter) Military. the British code name for intelligence gathered by decrypting German wireless communications enciphered on the Enigma machine during World War II.

Origin:
independent use of ultra-, or shortening of words prefixed with it

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World English Dictionary
ultra (ˈʌltrə)
 
adj
1.  extreme or immoderate, esp in beliefs or opinions
 
n
2.  an extremist
 
[C19: from Latin: beyond, from ulter distant]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

ultra-
prefix meaning "beyond" (ultraviolet) or "extremely" (ultramodern), from L. ultra- from ultra (adv. and prep.) "beyond, on the further side," from PIE *al- "beyond." In common use from early 19c., it appears to have arisen from Fr. political designations. As its own word, a noun meaning "extremist" of
various stripes, it is first recorded 1817, from Fr. ultra, shortening of ultra-royaliste "extreme royalist."

ne plus ultra
"utmost limit to which one can go," 1638, from L., lit. "no more beyond," traditionally inscribed on the Pillars of Hercules.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

ultra- pref.

  1. Beyond; on the other side of: ultraviolet.

  2. Beyond the range, scope, or limit of: ultrasonic.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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