From Proto-Tai *krwɯːᴬ (“ear”). Cognate with Thai หู (hǔu), Northern Thai ᩉᩪ, Lao ຫູ (hū), Shan ႁူ (hǔu), Lü ᦠᦴ (ḣuu), Tai Nüa ᥞᥧᥴ (hú), Aiton ꩭူ (hū), Ahom 𑜍𑜥 (rū), Zhuang rwz.
ꪬꪴ (transliteration needed)