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brighten

[brahyt-n] /ˈbraɪt n/
verb (used without object), verb (used with object)
1.
to become or make bright or brighter.
Origin
1250-1300
1250-1300; Middle English brightnen. See bright, -en1
Related forms
rebrighten, verb
unbrightened, adjective
Synonyms
lighten; cheer, gladden, lift, hearten, perk up.
Antonyms
darken; deject, sadden.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for un-brightened

brighten

/ˈbraɪtən/
verb
1.
to make or become bright or brighter
2.
to make or become cheerful
Derived Forms
brightener, noun
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
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Word Origin and History for un-brightened

brighten

v.

Old English *beorhtnian "to make bright" (see bright (adj.) + -en (1)). Intransitive sense, "to become brighter," attested from c.1300. Figurative use from 1590s. Related: Brightened; brightening.

Online Etymology Dictionary, © 2010 Douglas Harper
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