Here's the breakdown:
* "Expertus" is the past participle of the Latin verb "experiri," meaning "to try, to test, to experience."
* This highlights that the core meaning of "expert" is someone who has gained knowledge and skill through extensive experience.
The word entered English in the 14th century and evolved from its original meaning of "experienced" to its current sense of "a person with a high level of knowledge or skill in a particular area."
So, the next time you hear the word "expert," remember that it's a testament to the power of experience and the value of learned knowledge.