retro-

retro-

a prefix occurring in loanwords from Latin meaning “backward” (retrogress); on this model, used in the formation of compound words (retrorocket).
Origin:
< Latin, representing retrō (adv.), backward, back, behind

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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins
World English Dictionary
retro-
 
—prefix
1.  back or backwards: retroactive
2.  located behind: retrolental
 
[from Latin retrō behind, backwards]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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00:10
Retro- is always a great word to know.
So is callithumpian. Does it mean:
a scrap or morsel of food left at a meal.
a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.
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Etymonline
Word Origin & History

retro-
prefix meaning "backwards, behind," from L. retro (prep.) "backward, back, behind," probably originally the ablative form of *reteros, based on re- "back." Common in combinations in post-classical Latin.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

retro- pref.

  1. Backward; back: retroposition.

  2. Situated behind: retroperitoneum.

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