From Proto-Tai *χowᴮ (“knee”). Cognate with Lao ເຂົ່າ (khao), Thai เข่า (kào), Shan ၶဝ်ႇ (khào), Ahom 𑜁𑜧𑜈𑜫 (khaww) or 𑜁𑜧 (khaw).
ᥑᥝᥱ (xǎw) (1963 orthography ᥑᥝ̌)