peroration (n.)youdaoicibaDictYouDict[peroration 词源字典]
mid-15c., from Latin perorationem (nominative peroratio) "the ending of a speech or argument of a case," from past participle stem of perorare "argue a case to the end, bring a speech to a close," from per- "to the end" (see per) + orare "to speak, plead" (see orator).[peroration etymology, peroration origin, 英语词源]