acropolis (n.)youdaoicibaDictYouDict[acropolis 词源字典]
1660s, from Latinized form of Greek akropolis "citadel" (especially that of Athens), from akros "highest, upper" (see acrid) + polis in its older sense of "citadel; enclosed space, often on high ground" (see polis).[acropolis etymology, acropolis origin, 英语词源]