From Proto-Tai *doŋᴮ (“open field”). Cognate with Thai ทุ่ง (tûng), Lao ທົ່ງ (thong), Isan ท่ง, Northern Thai ᨴᩫ᩠᩵ᨦ, Khün ᨴᩫ᩠᩵ᨦ, Lü ᦑᦳᧂᧈ (tung¹), Shan တူင်ႈ (tūung), Tai Dam ꪶꪕ꪿ꪉ, Ahom 𑜄𑜤𑜂𑜫 (tuṅ).
ᥖᥨᥒ (tong) (1963 orthography ᥖᥨᥒ)