Atticism

[Luis Fok]

The style and idiom of the Greek language, used by the
Athenians; a concise and elegant expression.

[Tina]

a clear, pleasing style of language that became admired in ancient Greece early in the 1st century BC and later in other places, or a word or phrase typical of this style:

[Renato]

A word or form characteristic of Attic Greek.