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expertise1

[ek-sper-teez] /ˌɛk spərˈtiz/
noun
1.
expert skill or knowledge; expertness; know-how:
business expertise.
2.
a written opinion by an expert, as concerning the authenticity or value of a work of art, manuscript, etc.
Origin of expertise1
1865-1870
1865-70; < French: survey, report (made by experts); -ise taken as an abstract noun suffix. See expert, -ise2

expertise2

[ek-sper-tahyz] /ˈɛk spərˌtaɪz/
verb (used with object), verb (used without object), expertised, expertising. Chiefly British
1.

expertize

[ek-sper-tahyz] /ˈɛk spərˌtaɪz/
verb (used with object), verb (used without object), expertized, expertizing.
1.
to study or investigate as an expert.
Origin
1885-90; expert + -ize
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for expertises

expertise

/ˌɛkspɜːˈtiːz/
noun
1.
special skill, knowledge, or judgment; expertness
Word Origin
C19: from French: expert skill, from expert

expertize

/ˈɛkspɜːˌtaɪz/
verb
1.
(US) to act as an expert or give an expert opinion (on)
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 expertises

expertise

n.

1868, from French expertise (16c.) "expert appraisal, expert's report," from expert (see expert). Earlier in same sense was expertness (c.1600).

Online Etymology Dictionary, © 2010 Douglas Harper
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19
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