The headword phrase is a loose quotation of Aristophanes, Ecclesiazusae 587 (web address 1). See again, equally but differently loosely, at kappa 1177. The gloss is from the scholia there. The Greek relies on arche/archaia punning. And in historical terms the implication is that, less than a decade after the collapse of the Athenian Empire at the end of the Peloponnesian War (404 BCE), the Athenians' energies are for the time being inward-looking.