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assiduity

[as-i-doo-i-tee, -dyoo-] /ˌæs ɪˈdu ɪ ti, -ˈdyu-/
noun, plural assiduities.
1.
constant or close application or effort; diligence; industry.
2.
assiduities, devoted or solicitous attentions.
Origin
1595-1605
1595-1605; < Latin assiduitās. See assiduous, -ity
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for assiduity

assiduity

/ˌæsɪˈdjuːɪtɪ/
noun (pl) -ties
1.
constant and close application
2.
(often pl) devoted attention
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 assiduity
n.

early 15c., from Latin assiduatem "continual presence," noun of quality from past participle stem of assiduus (see assiduous).

Online Etymology Dictionary, © 2010 Douglas Harper
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