Etymology Inherited from Middle English expert, derived from Old French expert (“experienced”), espert, from Latin expertus (contracted from *experitus), perfect active participle of experior (“to try”), from ex- + *-perior.
Etymology Inherited from Middle English expert, derived from Old French expert (“experienced”), espert, from Latin expertus (contracted from *experitus), perfect active participle of experior (“to try”), from ex- + *-perior.
1
A person with extensive knowledge or ability in a given subject.
If an expert says it can't be done, get another expert. - David Ben-Gurion
We called in several experts on the subject, but they couldn't reach an agreement.
2 more examples
Plastics are energy-rich substances, which is why many of them burn so readily. Any organism that could unlock and use that energy would do well in the Anthropocene. Terrestrial bacteria and fungi which can manage this trick are already familiar to experts in the field.2013 July 20, “Welcome to the plastisphere”, in The Economist, volume 408, number 8845:
I'm an expert in my field Ufology, yes, it's all real Ancient aliens, it's all true I'm an expert just like you2016, Neil Cicierega, “Touch-Tone Telephone”, in Spirit Phone, performed by Lemon Demon:
Etymology Inherited from Middle English expert, derived from Old French expert (“experienced”), espert, from Latin expertus (contracted from *experitus), perfect active participle of experior (“to try”), from ex- + *-perior.
1
To have (something) reviewed or checked by an expert.
Estimated cost of editorial work on Advanced History […] Estimated cost of experting the Advanced History […]1896, California. State Dept, “Biennial Report”, in Education, page 52:
The bill in question was one proposing to appropriate from the public moneys of this State $30,000 to pay an accountant for experting the books of the Southern Pacific Company, in furtherance of litigation then pending.1899, Journals of the Legislature of the State of California, California: Legislature, page 470: