expert是什么意思（expert的用法）

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一、expert是什么意思

1、expert 专家

2、ex-, 向外。-per, 尝试，试验，词源同peril, empiricism. -t,过去分词后缀。即经历过多次的人。

二、expert的用法

1、expert (adj.)

2、late 14c., "having had experience; skillful," from Old French expert, espert "experienced, practiced, skilled" and directly from Latin expertus (contracted from *experitus), "tried, proved, known by experience," past participle of experiri "to try, test" (see experience). The adjective tends to be accented on the second syllable, the noun on the first. Related: Expertly; expertness.

3、expert (n.)

4、early 15c., "person wise through experience," from expert (adj.). The word reappeared 1825 in the legal sense, "person who, by virtue of special acquired knowledge or experience on a subject, presumably not within the knowledge of men generally, may testify in a court of justice to matters of opinion thereon, as distinguished from ordinary witnesses, who can in general testify only to facts" [Century Dictionary].

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