parlance (n.)youdaoicibaDictYouDict[parlance 词源字典]
1570s, "speaking, speech," especially in debate; 1787 as "way of speaking," from Anglo-French (c. 1300) and Old French parlance, from Old French parlaunce, from parler "to speak" (see parley).[parlance etymology, parlance origin, 英语词源]