From Proto-Tai *nwoːŋꟲ (“younger sibling”). Cognate with Thai น้อง (nɔ́ɔng), Northern Thai ᨶ᩶ᩬᨦ; Lao ນ້ອງ (nǭng); Lü ᦓᦸᧂᧉ (noang²); Tai Dam ꪙ꫁ꪮꪉ; Shan ၼွင်ႉ (nâ̰ung); Ahom 𑜃𑜨𑜂𑜫 (noṅ); Tày noọng; Zhuang nuengx, nongx.
nuangx