Atticism

noun

1. Attachment to, collaboration with, favouring of, or siding with Athens or Athenians, especially in the context of the Peloponnesian War (431–404 B.C.E.).
2. The enduring rhetorical movement, begun in the 1st century B.C.E., whose members strove to emulate the style of the best Attic orators of that Classical period; especially in contrast with Asianism or Hellenism. (Its leading early proponent, Dionysius of Halicarnassus [c. 60–p. 7 B.C.E.], identified Lysias [c. 445–380 B.C.E.] as “the perfect model of the Attic dialect”, whose virtues he…
3. The stylistic principles of Greek Atticism in application to other languages, especially to Latin.
4. An expression or idiom characteristic of or peculiar to Attic Greek, especially an elegant and refined, if grammatically irregular, usage.
5. A refined felicity or well-turned phrase, especially one deemed ungrammatical. (In Newcome, aposiopesis, dislocation, and inverse attraction, respectively.)