natter (v.)youdaoicibaDictYouDict[natter 词源字典]
"grumble, chatter aimlessly, nag," 1829, northern England dialect variant of gnatter "to chatter, grumble," earlier (18c.) "to nibble away," probably of echoic origin. Related: Nattered; nattering. As a noun, 1866, from the verb.[natter etymology, natter origin, 英语词源]