orate (v.)youdaoicibaDictYouDict[orate 词源字典]
c. 1600, "to pray, to plead," from Latin oratus, past participle of orare "speak, pray, plead, speak before a court or assembly" (see orator). The meaning "make a formal speech" emerged c. 1860 in American English as a back-formation of oration. Related: Orated; orating.[orate etymology, orate origin, 英语词源]