From Proto-Tai *χowᴮ (“knee”). Cognate with Lao ເຂົ່າ (khao), Tai Nüa ᥑᥝᥱ (xǎw), Shan ၶဝ်ႇ (khào), Ahom 𑜁𑜧𑜈𑜫 (khaww) or 𑜁𑜧 (khaw).
| Orthographic/Phonemic | เข่า e kʰ ˋ ā | |
|---|---|---|
| Romanization | Paiboon | kào |
| Royal Institute | khao | |
| (standard) IPA(key) | /kʰaw˨˩/(R) | |
เข่า • (kào)