Analyze and comment on the following."a laconic description" What does “laconic” mean? Which kind of motivated word is it? Why?

Analyze and comment on the following."a laconic description" What does “laconic” mean? Which kind of motivated word is it? Why?

（1）“LACONIC” MEANS “SHORT” OR “BRIEF”.
（2）IT BELONGS TO ETYMOLOGICALLY MOTIVATED WORD.
（3）IT IS DERIVED FROM “LACONS”，A TRIBE OF PEOPLE WHO WERE KNOWN FOR THEIR "BREVITY OF SPEECH" AND FOR THEIR HABIT OF NEVER USING MORE WORDS THAN NECESSARY.