From Proto-Tai *C̬.lɯmᴬ (“wind”). Cognate with Thai ลม (lom), Northern Thai ᩃᩫ᩠ᨾ, Lao ລົມ (lom), Lü ᦟᦳᧄ (lum), Shan လူမ်း (lúum), Ahom 𑜎𑜤𑜪 (luṃ).
rumz (1957–1982 spelling rumƨ)