Nearby Words

unfasten

[uhn-fas-uhn, -fah-suhn] Origin

un·fas·ten

[uhn-fas-uhn, -fah-suhn]
verb (used with object)
1.
to release from or as from fastenings; detach.
2.
to undo or open (something fastened).
verb (used without object)
3.
to become unfastened.

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Unfasten is one of our favorite verbs.
So is subtilize. Does it mean:
to flee; abscond:
to introduce subtleties into or argue subtly about.

Origin:
1175–1225; Middle English unfastnen. See un-2, fasten
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Collins
World English Dictionary
unfasten (ʌnˈfɑːsən)
 
vb
to undo, untie, or open or become undone, untied, or opened

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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Etymonline
Word Origin & History

unfasten
early 13c., from un- (2) + fasten.
Online Etymology Dictionary, © 2010 Douglas Harper
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