basilica (n.)youdaoicibaDictYouDict[basilica 词源字典]
1540s, from Latin basilica "building of a court of justice," and, by extension, church built on the plan of one, from Greek (stoa) basilike "royal (portal)," the portico of the archon basileus, the official who dispensed justice in Athens, from basileus "king" (see Basil). In Rome, applied specifically to the seven principal churches founded by Constantine.[basilica etymology, basilica origin, 英语词源]