From Proto-Tai *truəᴬ. Cognate with Thai หัว (hǔua), Northern Thai ᩉ᩠ᩅᩫ, Lao ຫົວ (hūa), Tai Dam ꪬꪺ, Shan ႁူဝ် (hǒ), Ahom 𑜑𑜥 (hū), 𑜍𑜥 (rū) or 𑜍𑜤𑜈𑜫 (ruw).
ᦷᦠ • (ḣo)