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operose

[op-uh-rohs] /ˈɒp əˌroʊs/
adjective
1.
industrious, as a person.
2.
done with or involving much labor.
Origin
1660-1670
1660-70; < Latin operōsus busy, active, equivalent to oper- (stem of opus) work + -ōsus -ose1
Related forms
operosely, adverb
operoseness, noun
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for operoseness

operose

/ˈɒpəˌrəʊs/
adjective (rare)
1.
laborious
2.
industrious; busy
Derived Forms
operosely, adverb
operoseness, noun
Word Origin
C17: from Latin operōsus painstaking, from opus work
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for operoseness

operose

adj.

"involving much labor," 1670s, from Latin operosus "taking great pains, laborious, active, industrious," from opus (genitive operis) "work" (see opus). Related: Operosity.

Online Etymology Dictionary, © 2010 Douglas Harper
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