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fidelity

[fi-del-i-tee, fahy-] /fɪˈdɛl ɪ ti, faɪ-/
noun, plural fidelities.
1.
strict observance of promises, duties, etc.:
a servant's fidelity.
2.
loyalty:
fidelity to one's country.
3.
conjugal faithfulness.
4.
adherence to fact or detail.
5.
accuracy; exactness:
The speech was transcribed with great fidelity.
6.
Audio, Video. the degree of accuracy with which sound or images are recorded or reproduced.
Origin
late Middle English
1375-1425
1375-1425; late Middle English fidelite (< Middle French) < Latin fidēlitās, equivalent to fidēli- (stem of fidēlis loyal, equivalent to fidē(s) faith + -lis adj. suffix) + -tās -ty2
Related forms
nonfidelity, noun
unfidelity, noun, plural unfidelities.
Synonyms
2. See loyalty. 5. precision, faithfulness, rigor, meticulousness.
Antonyms
2. disloyalty.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for nonfidelity

fidelity

/fɪˈdɛlɪtɪ/
noun (pl) -ties
1.
devotion to duties, obligations, etc; faithfulness
2.
loyalty or devotion, as to a person or cause
3.
faithfulness to one's spouse, lover, etc
4.
adherence to truth; accuracy in reporting detail
5.
(electronics) the degree to which the output of a system, such as an amplifier or radio, accurately reproduces the characteristics of the input signal See also high fidelity
Word Origin
C15: from Latin fidēlitās, from fidēlis faithful, from fidēs faith, loyalty
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 nonfidelity

fidelity

n.

early 15c., from Middle French fidélité (15c.), from Latin fidelitatem (nominative fidelitas) "faithfulness, adherence," from fidelis "faithful, true," from fides "faith" (see faith).

Online Etymology Dictionary, © 2010 Douglas Harper
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