blabber (v.)youdaoicibaDictYouDict[blabber 词源字典]
mid-14c., "to speak as an infant speaks," frequentative of blabben, of echoic origin (compare Old Norse blabbra, Danish blabbre "babble," German plappern "to babble"). Meaning "to talk excessively" is from late 14c. Related: Blabbered; blabbering.[blabber etymology, blabber origin, 英语词源]