From Proto-Tai *C̬.namꟲ (“water”). Cognate with Thai น้ำ (náam), Northern Thai ᨶ᩶ᩣᩴ (nam), Lao ນ້ຳ (nam), Lü ᦓᧄᧉ (nam²), Tai Dam ꪙꪾ꫁ (nam6), Tai Nüa ᥘᥛᥳ (lam5), Shan ၼမ်ႉ (nâ̰m), Bouyei ramx, Zhuang raemx, Saek นัม.
nẵm