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superfluous

[soo-pur-floo-uh s] /sʊˈpɜr flu əs/
adjective
1.
being more than is sufficient or required; excessive.
2.
unnecessary or needless.
3.
Obsolete. possessing or spending more than enough or necessary; extravagant.
Origin
late Middle English
1400-1450
1400-50; late Middle English < Latin superfluus, equivalent to super- super- + flu- (stem of fluere to flow) + -us -ous
Related forms
superfluously, adverb
superfluousness, noun
unsuperfluous, adjective
unsuperfluously, adverb
unsuperfluousness, noun
Synonyms
1. extra; redundant.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for superfluousness

superfluous

/suːˈpɜːflʊəs/
adjective
1.
exceeding what is sufficient or required
2.
not necessary or relevant; uncalled-for
3.
(obsolete) extravagant in expenditure or oversupplied with possessions
Derived Forms
superfluously, adverb
superfluousness, noun
Word Origin
C15: from Latin superfluus overflowing, from super- + fluere to flow
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 superfluousness

superfluous

adj.

early 15c. (earlier superflue, late 14c.), from Latin superfluus "unnecessary," literally "overflowing," from superfluere "to overflow," from super "over" (see super-) + fluere "to flow" (see fluent).

Online Etymology Dictionary, © 2010 Douglas Harper
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