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prolong

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pro⋅long

  [pruh-lawng, -long]
–verb (used with object)
1. to lengthen out in time; extend the duration of; cause to continue longer: to prolong one's stay abroad.
2. to make longer in spatial extent: to prolong a line.
Use prolong in a Sentence
Origin:
1375–1425; late ME prolongen < LL prōlongāre to lengthen, equiv. to prō- pro- 1 + long(us) long 1 + -ā- theme vowel + -re inf. ending

Related forms:
pro⋅long⋅a⋅ble, adjective
pro⋅long⋅a⋅ble⋅ness, noun
pro⋅long⋅a⋅bly, adverb
pro⋅long⋅er, noun
pro⋅long⋅ment, noun

Synonyms:
1. See lengthen.

Antonyms:
1. abbreviate.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2010.
Cite This Source Link To prolong
Prolong Super Lubricants
We Ship Same or Next Business Day Car Care Discount & Volume Prices
www.ProlongSales.com
Prolong Engine Treatment
Reduce Heat & Friction Lifetime Engine Warranty
www.prolong.com
pro·long   (prə-lông', -lŏng')   
tr.v.   pro·longed, pro·long·ing, pro·longs

  1. To lengthen in duration; protract.

  2. To lengthen in extent.


[Middle English prolongen, from Old French prolonguer, from Late Latin prōlongāre : Latin prō-, forth; see pro-1 + Latin longus, long; see del-1 in Indo-European roots.]
pro·long'er n.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

prolong 
1412, from O.Fr. prolonguer (13c.), from L.L. prolongare "to prolong, extend," from L. pro- "forth" + longus "long" (adj.) (see long (adj.)).
Online Etymology Dictionary, © 2001 Douglas Harper
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